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elphel-web-393
Commit 43d5a21d authored by Andrey Filippov's avatar Andrey Filippov
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Merge branch 'master' of github.com:Elphel/elphel-web-393

parents cc37d73e 3a824467
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Makefile
View file @ 43d5a21d
# Runs 'make', 'make install', and 'make clean' in specified subdirectories # Runs 'make', 'make install', and 'make clean' in specified subdirectories
SUBDIRS := src/php_top src/python_tests src/debugfs-webgui # src1 SUBDIRS := src/php_top src/python_tests src/debugfs-webgui src/jp4-canvas # src1
INSTALLDIRS = $(SUBDIRS:%=install-%) INSTALLDIRS = $(SUBDIRS:%=install-%)
CLEANDIRS = $(SUBDIRS:%=clean-%) CLEANDIRS = $(SUBDIRS:%=clean-%)
......
src/jp4-canvas/Makefile 0 → 100644
View file @ 43d5a21d
DOCUMENTROOT=$(DESTDIR)/www/pages
OWN = -o root -g root
INSTDOCS = 0644
INSTALL = install
DOCS= jp4-canvas.html \
jp4-canvas.js
LIBS= exif.js \
jquery-jp4.js \
jcanvas.min.js
PHP_SCRIPTS=get-image.php
all:
@echo "make all in src"
install:
@echo "make install in src"
$(INSTALL) $(OWN) -d $(DOCUMENTROOT) $(DOCUMENTROOT)/js
$(INSTALL) $(OWN) -m $(INSTDOCS) $(DOCS) $(DOCUMENTROOT)
$(INSTALL) $(OWN) -m $(INSTDOCS) $(LIBS) $(DOCUMENTROOT)/js
$(INSTALL) $(OWN) -m $(INSTDOCS) $(PHP_SCRIPTS) $(DOCUMENTROOT)
clean:
@echo "make clean in src"
src/jp4-canvas/exif.js 0 → 100644
View file @ 43d5a21d
/*
The MIT License (MIT)
Copyright (c) 2008 Jacob Seidelin
Permission is hereby granted, free of charge, to any person obtaining a copy of this software
and associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies
or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR
A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
OR OTHER DEALINGS IN THE SOFTWARE.
----------------------------------------------------------------------------------------------*/
(function() {
var debug = false;
var root = this;
var EXIF = function(obj) {
if (obj instanceof EXIF) return obj;
if (!(this instanceof EXIF)) return new EXIF(obj);
this.EXIFwrapped = obj;
};
if (typeof exports !== 'undefined') {
if (typeof module !== 'undefined' && module.exports) {
exports = module.exports = EXIF;
}
exports.EXIF = EXIF;
} else {
root.EXIF = EXIF;
}
var ExifTags = EXIF.Tags = {
// version tags
0x9000 : "ExifVersion", // EXIF version
0xA000 : "FlashpixVersion", // Flashpix format version
// colorspace tags
0xA001 : "ColorSpace", // Color space information tag
// image configuration
0xA002 : "PixelXDimension", // Valid width of meaningful image
0xA003 : "PixelYDimension", // Valid height of meaningful image
0x9101 : "ComponentsConfiguration", // Information about channels
0x9102 : "CompressedBitsPerPixel", // Compressed bits per pixel
// user information
0x927C : "MakerNote", // Any desired information written by the manufacturer
0x9286 : "UserComment", // Comments by user
// related file
0xA004 : "RelatedSoundFile", // Name of related sound file
// date and time
0x9003 : "DateTimeOriginal", // Date and time when the original image was generated
0x9004 : "DateTimeDigitized", // Date and time when the image was stored digitally
0x9290 : "SubsecTime", // Fractions of seconds for DateTime
0x9291 : "SubsecTimeOriginal", // Fractions of seconds for DateTimeOriginal
0x9292 : "SubsecTimeDigitized", // Fractions of seconds for DateTimeDigitized
// picture-taking conditions
0x829A : "ExposureTime", // Exposure time (in seconds)
0x829D : "FNumber", // F number
0x8822 : "ExposureProgram", // Exposure program
0x8824 : "SpectralSensitivity", // Spectral sensitivity
0x8827 : "ISOSpeedRatings", // ISO speed rating
0x8828 : "OECF", // Optoelectric conversion factor
0x9201 : "ShutterSpeedValue", // Shutter speed
0x9202 : "ApertureValue", // Lens aperture
0x9203 : "BrightnessValue", // Value of brightness
0x9204 : "ExposureBias", // Exposure bias
0x9205 : "MaxApertureValue", // Smallest F number of lens
0x9206 : "SubjectDistance", // Distance to subject in meters
0x9207 : "MeteringMode", // Metering mode
0x9208 : "LightSource", // Kind of light source
0x9209 : "Flash", // Flash status
0x9214 : "SubjectArea", // Location and area of main subject
0x920A : "FocalLength", // Focal length of the lens in mm
0xA20B : "FlashEnergy", // Strobe energy in BCPS
0xA20C : "SpatialFrequencyResponse", //
0xA20E : "FocalPlaneXResolution", // Number of pixels in width direction per FocalPlaneResolutionUnit
0xA20F : "FocalPlaneYResolution", // Number of pixels in height direction per FocalPlaneResolutionUnit
0xA210 : "FocalPlaneResolutionUnit", // Unit for measuring FocalPlaneXResolution and FocalPlaneYResolution
0xA214 : "SubjectLocation", // Location of subject in image
0xA215 : "ExposureIndex", // Exposure index selected on camera
0xA217 : "SensingMethod", // Image sensor type
0xA300 : "FileSource", // Image source (3 == DSC)
0xA301 : "SceneType", // Scene type (1 == directly photographed)
0xA302 : "CFAPattern", // Color filter array geometric pattern
0xA401 : "CustomRendered", // Special processing
0xA402 : "ExposureMode", // Exposure mode
0xA403 : "WhiteBalance", // 1 = auto white balance, 2 = manual
0xA404 : "DigitalZoomRation", // Digital zoom ratio
0xA405 : "FocalLengthIn35mmFilm", // Equivalent foacl length assuming 35mm film camera (in mm)
0xA406 : "SceneCaptureType", // Type of scene
0xA407 : "GainControl", // Degree of overall image gain adjustment
0xA408 : "Contrast", // Direction of contrast processing applied by camera
0xA409 : "Saturation", // Direction of saturation processing applied by camera
0xA40A : "Sharpness", // Direction of sharpness processing applied by camera
0xA40B : "DeviceSettingDescription", //
0xA40C : "SubjectDistanceRange", // Distance to subject
// other tags
0xA005 : "InteroperabilityIFDPointer",
0xA420 : "ImageUniqueID" // Identifier assigned uniquely to each image
};
var TiffTags = EXIF.TiffTags = {
0x0100 : "ImageWidth",
0x0101 : "ImageHeight",
0x8769 : "ExifIFDPointer",
0x8825 : "GPSInfoIFDPointer",
0xA005 : "InteroperabilityIFDPointer",
0x0102 : "BitsPerSample",
0x0103 : "Compression",
0x0106 : "PhotometricInterpretation",
0x0112 : "Orientation",
0x0115 : "SamplesPerPixel",
0x011C : "PlanarConfiguration",
0x0212 : "YCbCrSubSampling",
0x0213 : "YCbCrPositioning",
0x011A : "XResolution",
0x011B : "YResolution",
0x0128 : "ResolutionUnit",
0x0111 : "StripOffsets",
0x0116 : "RowsPerStrip",
0x0117 : "StripByteCounts",
0x0201 : "JPEGInterchangeFormat",
0x0202 : "JPEGInterchangeFormatLength",
0x012D : "TransferFunction",
0x013E : "WhitePoint",
0x013F : "PrimaryChromaticities",
0x0211 : "YCbCrCoefficients",
0x0214 : "ReferenceBlackWhite",
0x0132 : "DateTime",
0x010E : "ImageDescription",
0x010F : "Make",
0x0110 : "Model",
0x0131 : "Software",
0x013B : "Artist",
0x8298 : "Copyright"
};
var GPSTags = EXIF.GPSTags = {
0x0000 : "GPSVersionID",
0x0001 : "GPSLatitudeRef",
0x0002 : "GPSLatitude",
0x0003 : "GPSLongitudeRef",
0x0004 : "GPSLongitude",
0x0005 : "GPSAltitudeRef",
0x0006 : "GPSAltitude",
0x0007 : "GPSTimeStamp",
0x0008 : "GPSSatellites",
0x0009 : "GPSStatus",
0x000A : "GPSMeasureMode",
0x000B : "GPSDOP",
0x000C : "GPSSpeedRef",
0x000D : "GPSSpeed",
0x000E : "GPSTrackRef",
0x000F : "GPSTrack",
0x0010 : "GPSImgDirectionRef",
0x0011 : "GPSImgDirection",
0x0012 : "GPSMapDatum",
0x0013 : "GPSDestLatitudeRef",
0x0014 : "GPSDestLatitude",
0x0015 : "GPSDestLongitudeRef",
0x0016 : "GPSDestLongitude",
0x0017 : "GPSDestBearingRef",
0x0018 : "GPSDestBearing",
0x0019 : "GPSDestDistanceRef",
0x001A : "GPSDestDistance",
0x001B : "GPSProcessingMethod",
0x001C : "GPSAreaInformation",
0x001D : "GPSDateStamp",
0x001E : "GPSDifferential"
};
var StringValues = EXIF.StringValues = {
ExposureProgram : {
0 : "Not defined",
1 : "Manual",
2 : "Normal program",
3 : "Aperture priority",
4 : "Shutter priority",
5 : "Creative program",
6 : "Action program",
7 : "Portrait mode",
8 : "Landscape mode"
},
MeteringMode : {
0 : "Unknown",
1 : "Average",
2 : "CenterWeightedAverage",
3 : "Spot",
4 : "MultiSpot",
5 : "Pattern",
6 : "Partial",
255 : "Other"
},
LightSource : {
0 : "Unknown",
1 : "Daylight",
2 : "Fluorescent",
3 : "Tungsten (incandescent light)",
4 : "Flash",
9 : "Fine weather",
10 : "Cloudy weather",
11 : "Shade",
12 : "Daylight fluorescent (D 5700 - 7100K)",
13 : "Day white fluorescent (N 4600 - 5400K)",
14 : "Cool white fluorescent (W 3900 - 4500K)",
15 : "White fluorescent (WW 3200 - 3700K)",
17 : "Standard light A",
18 : "Standard light B",
19 : "Standard light C",
20 : "D55",
21 : "D65",
22 : "D75",
23 : "D50",
24 : "ISO studio tungsten",
255 : "Other"
},
Flash : {
0x0000 : "Flash did not fire",
0x0001 : "Flash fired",
0x0005 : "Strobe return light not detected",
0x0007 : "Strobe return light detected",
0x0009 : "Flash fired, compulsory flash mode",
0x000D : "Flash fired, compulsory flash mode, return light not detected",
0x000F : "Flash fired, compulsory flash mode, return light detected",
0x0010 : "Flash did not fire, compulsory flash mode",
0x0018 : "Flash did not fire, auto mode",
0x0019 : "Flash fired, auto mode",
0x001D : "Flash fired, auto mode, return light not detected",
0x001F : "Flash fired, auto mode, return light detected",
0x0020 : "No flash function",
0x0041 : "Flash fired, red-eye reduction mode",
0x0045 : "Flash fired, red-eye reduction mode, return light not detected",
0x0047 : "Flash fired, red-eye reduction mode, return light detected",
0x0049 : "Flash fired, compulsory flash mode, red-eye reduction mode",
0x004D : "Flash fired, compulsory flash mode, red-eye reduction mode, return light not detected",
0x004F : "Flash fired, compulsory flash mode, red-eye reduction mode, return light detected",
0x0059 : "Flash fired, auto mode, red-eye reduction mode",
0x005D : "Flash fired, auto mode, return light not detected, red-eye reduction mode",
0x005F : "Flash fired, auto mode, return light detected, red-eye reduction mode"
},
SensingMethod : {
1 : "Not defined",
2 : "One-chip color area sensor",
3 : "Two-chip color area sensor",
4 : "Three-chip color area sensor",
5 : "Color sequential area sensor",
7 : "Trilinear sensor",
8 : "Color sequential linear sensor"
},
SceneCaptureType : {
0 : "Standard",
1 : "Landscape",
2 : "Portrait",
3 : "Night scene"
},
SceneType : {
1 : "Directly photographed"
},
CustomRendered : {
0 : "Normal process",
1 : "Custom process"
},
WhiteBalance : {
0 : "Auto white balance",
1 : "Manual white balance"
},
GainControl : {
0 : "None",
1 : "Low gain up",
2 : "High gain up",
3 : "Low gain down",
4 : "High gain down"
},
Contrast : {
0 : "Normal",
1 : "Soft",
2 : "Hard"
},
Saturation : {
0 : "Normal",
1 : "Low saturation",
2 : "High saturation"
},
Sharpness : {
0 : "Normal",
1 : "Soft",
2 : "Hard"
},
SubjectDistanceRange : {
0 : "Unknown",
1 : "Macro",
2 : "Close view",
3 : "Distant view"
},
FileSource : {
3 : "DSC"
},
Components : {
0 : "",
1 : "Y",
2 : "Cb",
3 : "Cr",
4 : "R",
5 : "G",
6 : "B"
}
};
function addEvent(element, event, handler) {
if (element.addEventListener) {
element.addEventListener(event, handler, false);
} else if (element.attachEvent) {
element.attachEvent("on" + event, handler);
}
}
function imageHasData(img) {
return !!(img.exifdata);
}
function base64ToArrayBuffer(base64, contentType) {
contentType = contentType || base64.match(/^data\:([^\;]+)\;base64,/mi)[1] || ''; // e.g. 'data:image/jpeg;base64,...' => 'image/jpeg'
base64 = base64.replace(/^data\:([^\;]+)\;base64,/gmi, '');
var binary = atob(base64);
var len = binary.length;
var buffer = new ArrayBuffer(len);
var view = new Uint8Array(buffer);
for (var i = 0; i < len; i++) {
view[i] = binary.charCodeAt(i);
}
return buffer;
}
function objectURLToBlob(url, callback) {
var http = new XMLHttpRequest();
http.open("GET", url, true);
http.responseType = "blob";
http.onload = function(e) {
if (this.status == 200 || this.status === 0) {
callback(this.response);
}
};
http.send();
}
function getImageData(img, callback) {
function handleBinaryFile(binFile) {
var data = findEXIFinJPEG(binFile);
var iptcdata = findIPTCinJPEG(binFile);
img.exifdata = data || {};
img.iptcdata = iptcdata || {};
if (callback) {
callback.call(img);
}
}
if (img.src) {
if (/^data\:/i.test(img.src)) { // Data URI
var arrayBuffer = base64ToArrayBuffer(img.src);
handleBinaryFile(arrayBuffer);
} else if (/^blob\:/i.test(img.src)) { // Object URL
var fileReader = new FileReader();
fileReader.onload = function(e) {
handleBinaryFile(e.target.result);
};
objectURLToBlob(img.src, function (blob) {
fileReader.readAsArrayBuffer(blob);
});
} else {
var http = new XMLHttpRequest();
http.onload = function() {
if (this.status == 200 || this.status === 0) {
handleBinaryFile(http.response);
} else {
throw "Could not load image";
}
http = null;
};
http.open("GET", img.src, true);
http.responseType = "arraybuffer";
http.send(null);
}
} else if (window.FileReader && (img instanceof window.Blob || img instanceof window.File)) {
var fileReader = new FileReader();
fileReader.onload = function(e) {
if (debug) console.log("Got file of length " + e.target.result.byteLength);
handleBinaryFile(e.target.result);
};
fileReader.readAsArrayBuffer(img);
}
}
function findEXIFinJPEG(file) {
var dataView = new DataView(file);
if (debug) console.log("Got file of length " + file.byteLength);
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
if (debug) console.log("Not a valid JPEG");
return false; // not a valid jpeg
}
var offset = 2,
length = file.byteLength,
marker;
while (offset < length) {
if (dataView.getUint8(offset) != 0xFF) {
if (debug) console.log("Not a valid marker at offset " + offset + ", found: " + dataView.getUint8(offset));
return false; // not a valid marker, something is wrong
}
marker = dataView.getUint8(offset + 1);
if (debug) console.log(marker);
// we could implement handling for other markers here,
// but we're only looking for 0xFFE1 for EXIF data
if (marker == 225) {
if (debug) console.log("Found 0xFFE1 marker");
return readEXIFData(dataView, offset + 4, dataView.getUint16(offset + 2) - 2);
// offset += 2 + file.getShortAt(offset+2, true);
} else {
offset += 2 + dataView.getUint16(offset+2);
}
}
}
function findIPTCinJPEG(file) {
var dataView = new DataView(file);
if (debug) console.log("Got file of length " + file.byteLength);
if ((dataView.getUint8(0) != 0xFF) || (dataView.getUint8(1) != 0xD8)) {
if (debug) console.log("Not a valid JPEG");
return false; // not a valid jpeg
}
var offset = 2,
length = file.byteLength;
var isFieldSegmentStart = function(dataView, offset){
return (
dataView.getUint8(offset) === 0x38 &&
dataView.getUint8(offset+1) === 0x42 &&
dataView.getUint8(offset+2) === 0x49 &&
dataView.getUint8(offset+3) === 0x4D &&
dataView.getUint8(offset+4) === 0x04 &&
dataView.getUint8(offset+5) === 0x04
);
};
while (offset < length) {
if ( isFieldSegmentStart(dataView, offset )){
// Get the length of the name header (which is padded to an even number of bytes)
var nameHeaderLength = dataView.getUint8(offset+7);
if(nameHeaderLength % 2 !== 0) nameHeaderLength += 1;
// Check for pre photoshop 6 format
if(nameHeaderLength === 0) {
// Always 4
nameHeaderLength = 4;
}
var startOffset = offset + 8 + nameHeaderLength;
var sectionLength = dataView.getUint16(offset + 6 + nameHeaderLength);
return readIPTCData(file, startOffset, sectionLength);
break;
}
// Not the marker, continue searching
offset++;
}
}
var IptcFieldMap = {
0x78 : 'caption',
0x6E : 'credit',
0x19 : 'keywords',
0x37 : 'dateCreated',
0x50 : 'byline',
0x55 : 'bylineTitle',
0x7A : 'captionWriter',
0x69 : 'headline',
0x74 : 'copyright',
0x0F : 'category'
};
function readIPTCData(file, startOffset, sectionLength){
var dataView = new DataView(file);
var data = {};
var fieldValue, fieldName, dataSize, segmentType, segmentSize;
var segmentStartPos = startOffset;
while(segmentStartPos < startOffset+sectionLength) {
if(dataView.getUint8(segmentStartPos) === 0x1C && dataView.getUint8(segmentStartPos+1) === 0x02){
segmentType = dataView.getUint8(segmentStartPos+2);
if(segmentType in IptcFieldMap) {
dataSize = dataView.getInt16(segmentStartPos+3);
segmentSize = dataSize + 5;
fieldName = IptcFieldMap[segmentType];
fieldValue = getStringFromDB(dataView, segmentStartPos+5, dataSize);
// Check if we already stored a value with this name
if(data.hasOwnProperty(fieldName)) {
// Value already stored with this name, create multivalue field
if(data[fieldName] instanceof Array) {
data[fieldName].push(fieldValue);
}
else {
data[fieldName] = [data[fieldName], fieldValue];
}
}
else {
data[fieldName] = fieldValue;
}
}
}
segmentStartPos++;
}
return data;
}
function readTags(file, tiffStart, dirStart, strings, bigEnd) {
var entries = file.getUint16(dirStart, !bigEnd),
tags = {},
entryOffset, tag,
i;
for (i=0;i<entries;i++) {
entryOffset = dirStart + i*12 + 2;
tag = strings[file.getUint16(entryOffset, !bigEnd)];
if (!tag && debug) console.log("Unknown tag: " + file.getUint16(entryOffset, !bigEnd));
tags[tag] = readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd);
}
return tags;
}
function readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd) {
var type = file.getUint16(entryOffset+2, !bigEnd),
numValues = file.getUint32(entryOffset+4, !bigEnd),
valueOffset = file.getUint32(entryOffset+8, !bigEnd) + tiffStart,
offset,
vals, val, n,
numerator, denominator;
switch (type) {
case 1: // byte, 8-bit unsigned int
case 7: // undefined, 8-bit byte, value depending on field
if (numValues == 1) {
return file.getUint8(entryOffset + 8, !bigEnd);
} else {
offset = numValues > 4 ? valueOffset : (entryOffset + 8);
vals = [];
for (n=0;n<numValues;n++) {
vals[n] = file.getUint8(offset + n);
}
return vals;
}
case 2: // ascii, 8-bit byte
offset = numValues > 4 ? valueOffset : (entryOffset + 8);
return getStringFromDB(file, offset, numValues-1);
case 3: // short, 16 bit int
if (numValues == 1) {
return file.getUint16(entryOffset + 8, !bigEnd);
} else {
offset = numValues > 2 ? valueOffset : (entryOffset + 8);
vals = [];
for (n=0;n<numValues;n++) {
vals[n] = file.getUint16(offset + 2*n, !bigEnd);
}
return vals;
}
case 4: // long, 32 bit int
if (numValues == 1) {
return file.getUint32(entryOffset + 8, !bigEnd);
} else {
vals = [];
for (n=0;n<numValues;n++) {
vals[n] = file.getUint32(valueOffset + 4*n, !bigEnd);
}
return vals;
}
case 5: // rational = two long values, first is numerator, second is denominator
if (numValues == 1) {
numerator = file.getUint32(valueOffset, !bigEnd);
denominator = file.getUint32(valueOffset+4, !bigEnd);
val = new Number(numerator / denominator);
val.numerator = numerator;
val.denominator = denominator;
return val;
} else {
vals = [];
for (n=0;n<numValues;n++) {
numerator = file.getUint32(valueOffset + 8*n, !bigEnd);
denominator = file.getUint32(valueOffset+4 + 8*n, !bigEnd);
vals[n] = new Number(numerator / denominator);
vals[n].numerator = numerator;
vals[n].denominator = denominator;
}
return vals;
}
case 9: // slong, 32 bit signed int
if (numValues == 1) {
return file.getInt32(entryOffset + 8, !bigEnd);
} else {
vals = [];
for (n=0;n<numValues;n++) {
vals[n] = file.getInt32(valueOffset + 4*n, !bigEnd);
}
return vals;
}
case 10: // signed rational, two slongs, first is numerator, second is denominator
if (numValues == 1) {
return file.getInt32(valueOffset, !bigEnd) / file.getInt32(valueOffset+4, !bigEnd);
} else {
vals = [];
for (n=0;n<numValues;n++) {
vals[n] = file.getInt32(valueOffset + 8*n, !bigEnd) / file.getInt32(valueOffset+4 + 8*n, !bigEnd);
}
return vals;
}
}
}
function getStringFromDB(buffer, start, length) {
var outstr = "";
for (n = start; n < start+length; n++) {
outstr += String.fromCharCode(buffer.getUint8(n));
}
return outstr;
}
function readEXIFData(file, start) {
if (getStringFromDB(file, start, 4) != "Exif") {
if (debug) console.log("Not valid EXIF data! " + getStringFromDB(file, start, 4));
return false;
}
var bigEnd,
tags, tag,
exifData, gpsData,
tiffOffset = start + 6;
// test for TIFF validity and endianness
if (file.getUint16(tiffOffset) == 0x4949) {
bigEnd = false;
} else if (file.getUint16(tiffOffset) == 0x4D4D) {
bigEnd = true;
} else {
if (debug) console.log("Not valid TIFF data! (no 0x4949 or 0x4D4D)");
return false;
}
if (file.getUint16(tiffOffset+2, !bigEnd) != 0x002A) {
if (debug) console.log("Not valid TIFF data! (no 0x002A)");
return false;
}
var firstIFDOffset = file.getUint32(tiffOffset+4, !bigEnd);
if (firstIFDOffset < 0x00000008) {
if (debug) console.log("Not valid TIFF data! (First offset less than 8)", file.getUint32(tiffOffset+4, !bigEnd));
return false;
}
tags = readTags(file, tiffOffset, tiffOffset + firstIFDOffset, TiffTags, bigEnd);
if (tags.ExifIFDPointer) {
exifData = readTags(file, tiffOffset, tiffOffset + tags.ExifIFDPointer, ExifTags, bigEnd);
for (tag in exifData) {
switch (tag) {
case "LightSource" :
case "Flash" :
case "MeteringMode" :
case "ExposureProgram" :
case "SensingMethod" :
case "SceneCaptureType" :
case "SceneType" :
case "CustomRendered" :
case "WhiteBalance" :
case "GainControl" :
case "Contrast" :
case "Saturation" :
case "Sharpness" :
case "SubjectDistanceRange" :
case "FileSource" :
exifData[tag] = StringValues[tag][exifData[tag]];
break;
case "ExifVersion" :
case "FlashpixVersion" :
exifData[tag] = String.fromCharCode(exifData[tag][0], exifData[tag][1], exifData[tag][2], exifData[tag][3]);
break;
case "ComponentsConfiguration" :
exifData[tag] =
StringValues.Components[exifData[tag][0]] +
StringValues.Components[exifData[tag][1]] +
StringValues.Components[exifData[tag][2]] +
StringValues.Components[exifData[tag][3]];
break;
}
tags[tag] = exifData[tag];
}
}
if (tags.GPSInfoIFDPointer) {
gpsData = readTags(file, tiffOffset, tiffOffset + tags.GPSInfoIFDPointer, GPSTags, bigEnd);
for (tag in gpsData) {
switch (tag) {
case "GPSVersionID" :
gpsData[tag] = gpsData[tag][0] +
"." + gpsData[tag][1] +
"." + gpsData[tag][2] +
"." + gpsData[tag][3];
break;
}
tags[tag] = gpsData[tag];
}
}
return tags;
}
EXIF.getData = function(img, callback) {
if ((img instanceof Image || img instanceof HTMLImageElement) && !img.complete) return false;
if (!imageHasData(img)) {
getImageData(img, callback);
} else {
if (callback) {
callback.call(img);
}
}
return true;
}
EXIF.getTag = function(img, tag) {
if (!imageHasData(img)) return;
return img.exifdata[tag];
}
EXIF.getAllTags = function(img) {
if (!imageHasData(img)) return {};
var a,
data = img.exifdata,
tags = {};
for (a in data) {
if (data.hasOwnProperty(a)) {
tags[a] = data[a];
}
}
return tags;
}
EXIF.pretty = function(img) {
if (!imageHasData(img)) return "";
var a,
data = img.exifdata,
strPretty = "";
for (a in data) {
if (data.hasOwnProperty(a)) {
if (typeof data[a] == "object") {
if (data[a] instanceof Number) {
strPretty += a + " : " + data[a] + " [" + data[a].numerator + "/" + data[a].denominator + "]\r\n";
} else {
strPretty += a + " : [" + data[a].length + " values]\r\n";
}
} else {
strPretty += a + " : " + data[a] + "\r\n";
}
}
}
return strPretty;
}
EXIF.readFromBinaryFile = function(file) {
return findEXIFinJPEG(file);
}
if (typeof define === 'function' && define.amd) {
define('exif-js', [], function() {
return EXIF;
});
}
}.call(this));
src/jp4-canvas/get-image.php 0 → 100644
View file @ 43d5a21d
<?php
if (isset($_GET['port']))
$port = $_GET['port'];
else
die();
if (isset($_GET['rel']))
$rel = $_GET['rel'];
else
die();
header('Content-type:image/jpeg');
echo file_get_contents("http://localhost:$port/$rel");
?>
src/jp4-canvas/jcanvas.min.js 0 → 100644
View file @ 43d5a21d
/*
jCanvas v15.03.29
Copyright 2015 Caleb Evans
Released under the MIT license
*/
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m.end=Ja(m.end),m.end<m.start&&(m.end+=2*D),B=(m.start+m.end)/2,F=m.radius*m.spread*P(B),B=m.radius*m.spread*U(B),m.x+=F,m.y+=B,q.beginPath(),q.arc(m.x,m.y,m.radius,m.start,m.end,m.ccw),q.lineTo(m.x,m.y),T(this[t],q,m),m.closed=u,W(this[t],q,m));return this};f.fn.drawLine=function H(h){var f,m,B;for(f=0;f<this.length;f+=1)if(m=K(this[f]))B=new G(h),O(this[f],B,h,H),B.visible&&(S(this[f],m,B),R(this[f],m,B),m.beginPath(),Ma(this[f],m,B,B),T(this[f],m,B),W(this[f],m,B));return this};f.fn.drawQuadratic=
function t(f){var h,B,F;for(h=0;h<this.length;h+=1)if(B=K(this[h]))F=new G(f),O(this[h],F,f,t),F.visible&&(S(this[h],B,F),R(this[h],B,F),B.beginPath(),Na(this[h],B,F,F),T(this[h],B,F),W(this[h],B,F));return this};f.fn.drawBezier=function q(h){var f,F,M;for(f=0;f<this.length;f+=1)if(F=K(this[f]))M=new G(h),O(this[f],M,h,q),M.visible&&(S(this[f],F,M),R(this[f],F,M),F.beginPath(),Oa(this[f],F,M,M),T(this[f],F,M),W(this[f],F,M));return this};f.fn.drawVector=function m(f){var h,M,v;for(h=0;h<this.length;h+=
1)if(M=K(this[h]))v=new G(f),O(this[h],v,f,m),v.visible&&(S(this[h],M,v),R(this[h],M,v),M.beginPath(),Ra(this[h],M,v,v),T(this[h],M,v),W(this[h],M,v));return this};f.fn.drawPath=function B(h){var f,v,n,l,C;for(f=0;f<this.length;f+=1)if(v=K(this[f]))if(n=new G(h),O(this[f],n,h,B),n.visible){S(this[f],v,n);R(this[f],v,n);v.beginPath();for(l=1;u;)if(C=n["p"+l],C!==p)C=new G(C),"line"===C.type?Ma(this[f],v,n,C):"quadratic"===C.type?Na(this[f],v,n,C):"bezier"===C.type?Oa(this[f],v,n,C):"vector"===C.type?
Ra(this[f],v,n,C):"arc"===C.type&&Ka(this[f],v,n,C),l+=1;else break;T(this[f],v,n);W(this[f],v,n)}return this};f.fn.drawText=function F(M){var v,n,l,C,$,s,E,p,u,A;for(v=0;v<this.length;v+=1)if(f(this[v]),n=K(this[v]))if(l=new G(M),C=O(this[v],l,M,F),l.visible){S(this[v],n,l);n.textBaseline=l.baseline;n.textAlign=l.align;ta(this[v],n,l);$=l.maxWidth!==h?Sa(n,l):l.text.toString().split("\n");ua(this[v],n,l,$);C&&(C.width=l.width,C.height=l.height);R(this[v],n,l,l.width,l.height);E=l.x;"left"===l.align?
l.respectAlign?l.x+=l.width/2:E-=l.width/2:"right"===l.align&&(l.respectAlign?l.x-=l.width/2:E+=l.width/2);if(l.radius)for(E=Y(l.fontSize),l.letterSpacing===h&&(l.letterSpacing=E/500),s=0;s<$.length;s+=1){n.save();n.translate(l.x,l.y);C=$[s];p=C.length;n.rotate(-(D*l.letterSpacing*(p-1))/2);for(A=0;A<p;A+=1)u=C[A],0!==A&&n.rotate(D*l.letterSpacing),n.save(),n.translate(0,-l.radius),n.fillText(u,0,0),n.restore();l.radius-=E;l.letterSpacing+=E/(1E3*D);n.restore()}else for(s=0;s<$.length;s+=1)C=$[s],
p=l.y+s*l.height/$.length-($.length-1)*l.height/$.length/2,n.shadowColor=l.shadowColor,n.fillText(C,E,p),"transparent"!==l.fillStyle&&(n.shadowColor="transparent"),0!==l.strokeWidth&&n.strokeText(C,E,p);p=0;"top"===l.baseline?p+=l.height/2:"bottom"===l.baseline&&(p-=l.height/2);l._event&&(n.beginPath(),n.rect(l.x-l.width/2,l.y-l.height/2+p,l.width,l.height),T(this[v],n,l),n.closePath());l._transformed&&n.restore()}ca.propCache=l;return this};f.fn.measureText=function(f){var h,v;h=this.getLayer(f);
if(!h||h&&!h._layer)h=new G(f);if(f=K(this[0]))ta(this[0],f,h),v=Sa(f,h),ua(this[0],f,h,v);return h};f.fn.drawImage=function M(v){function n(l,n,s,r,v){return function(){var C=f(l);S(l,n,r);r.width===h&&r.sWidth===h&&(r.width=r.sWidth=I.width);r.height===h&&r.sHeight===h&&(r.height=r.sHeight=I.height);v&&(v.width=r.width,v.height=r.height);r.sWidth!==h&&r.sHeight!==h&&r.sx!==h&&r.sy!==h?(r.width===h&&(r.width=r.sWidth),r.height===h&&(r.height=r.sHeight),r.cropFromCenter&&(r.sx+=r.sWidth/2,r.sy+=r.sHeight/
2),0>r.sy-r.sHeight/2&&(r.sy=r.sHeight/2),r.sy+r.sHeight/2>I.height&&(r.sy=I.height-r.sHeight/2),0>r.sx-r.sWidth/2&&(r.sx=r.sWidth/2),r.sx+r.sWidth/2>I.width&&(r.sx=I.width-r.sWidth/2),R(l,n,r,r.width,r.height),n.drawImage(I,r.sx-r.sWidth/2,r.sy-r.sHeight/2,r.sWidth,r.sHeight,r.x-r.width/2,r.y-r.height/2,r.width,r.height)):(R(l,n,r,r.width,r.height),n.drawImage(I,r.x-r.width/2,r.y-r.height/2,r.width,r.height));n.beginPath();n.rect(r.x-r.width/2,r.y-r.height/2,r.width,r.height);T(l,n,r);n.closePath();
r._transformed&&n.restore();ya(n,s,r);r.layer?Q(C,s,v,"load"):r.load&&r.load.call(C[0],v);r.layer&&(v._masks=s.transforms.masks.slice(0),r._next&&C.drawLayers({clear:A,resetFire:u,index:r._next}))}}var l,C,p,s,E,D,I,wa,L,P=ca.imageCache;for(C=0;C<this.length;C+=1)if(l=this[C],p=K(this[C]))s=N(this[C]),E=new G(v),D=O(this[C],E,v,M),E.visible&&(L=E.source,wa=L.getContext,L.src||wa?I=L:L&&(P[L]&&P[L].complete?I=P[L]:(I=new Ta,L.match(/^data:/i)||(I.crossOrigin=E.crossOrigin),I.src=L,P[L]=I)),I&&(I.complete||
wa?n(l,p,s,E,D)():(I.onload=n(l,p,s,E,D),I.src=I.src)));return this};f.fn.createPattern=function(p){function v(){s=l.createPattern(u,C.repeat);C.load&&C.load.call(n[0],s)}var n=this,l,C,u,s,E;(l=K(n[0]))?(C=new G(p),E=C.source,da(E)?(u=f("<canvas />")[0],u.width=C.width,u.height=C.height,p=K(u),E.call(u,p),v()):(p=E.getContext,E.src||p?u=E:(u=new Ta,E.match(/^data:/i)||(u.crossOrigin=C.crossOrigin),u.src=E),u.complete||p?v():(u.onload=v(),u.src=u.src))):s=h;return s};f.fn.createGradient=function(f){var v,
n=[],l,C,u,s,E,A,I;f=new G(f);if(v=K(this[0])){f.x1=f.x1||0;f.y1=f.y1||0;f.x2=f.x2||0;f.y2=f.y2||0;v=f.r1!==h&&f.r2!==h?v.createRadialGradient(f.x1,f.y1,f.r1,f.x2,f.y2,f.r2):v.createLinearGradient(f.x1,f.y1,f.x2,f.y2);for(s=1;f["c"+s]!==p;s+=1)f["s"+s]!==p?n.push(f["s"+s]):n.push(h);l=n.length;n[0]===h&&(n[0]=0);n[l-1]===h&&(n[l-1]=1);for(s=0;s<l;s+=1){if(n[s]!==h){A=1;I=0;C=n[s];for(E=s+1;E<l;E+=1)if(n[E]!==h){u=n[E];break}else A+=1;C>u&&(n[E]=n[s])}else n[s]===h&&(I+=1,n[s]=C+(u-C)/A*I);v.addColorStop(n[s],
f["c"+(s+1)])}}else v=h;return v};f.fn.setPixels=function v(f){var l,p,u,s,E,A,I,D,L;for(p=0;p<this.length;p+=1)if(l=this[p],u=K(l)){s=new G(f);O(l,s,f,v);R(this[p],u,s,s.width,s.height);if(s.width===h||s.height===h)s.width=l.width,s.height=l.height,s.x=s.width/2,s.y=s.height/2;if(0!==s.width&&0!==s.height){A=u.getImageData(s.x-s.width/2,s.y-s.height/2,s.width,s.height);I=A.data;L=I.length;if(s.each)for(D=0;D<L;D+=4)E={r:I[D],g:I[D+1],b:I[D+2],a:I[D+3]},s.each.call(l,E,s),I[D]=E.r,I[D+1]=E.g,I[D+
2]=E.b,I[D+3]=E.a;u.putImageData(A,s.x-s.width/2,s.y-s.height/2);u.restore()}}return this};f.fn.getCanvasImage=function(f,n){var l,u=h;0!==this.length&&(l=this[0],l.toDataURL&&(n===p&&(n=1),u=l.toDataURL("image/"+f,n)));return u};f.fn.detectPixelRatio=function(h){var n,l,p,A,s,E,D;for(l=0;l<this.length;l+=1)n=this[l],f(this[l]),p=K(n),D=N(this[l]),D.scaled||(A=L.devicePixelRatio||1,s=p.webkitBackingStorePixelRatio||p.mozBackingStorePixelRatio||p.msBackingStorePixelRatio||p.oBackingStorePixelRatio||
p.backingStorePixelRatio||1,A/=s,1!==A&&(s=n.width,E=n.height,n.width=s*A,n.height=E*A,n.style.width=s+"px",n.style.height=E+"px",p.scale(A,A)),D.pixelRatio=A,D.scaled=u,h&&h.call(n,A));return this};Z.clearCache=function(){for(var f in ca)ca.hasOwnProperty(f)&&(ca[f]={})};f.support.canvas=f("<canvas />")[0].getContext!==p;aa(Z,{defaults:ma,setGlobalProps:S,transformShape:R,detectEvents:T,closePath:W,setCanvasFont:ta,measureText:ua});f.jCanvas=Z;f.jCanvasObject=G});
src/jp4-canvas/jp4-canvas.html 0 → 100644
View file @ 43d5a21d
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<meta name="author" content="?"/>
</head>
<body>
<table>
<tr>
<td><div id='test2'></div></td>
<td><div id='test4'></div></td>
</tr>
<tr>
<td><div id='test1'></div></td>
<td><div id='test3'></div></td>
</tr>
</table>
<script src="js/jquery-2.2.3.min.js"></script>
<script src="js/jcanvas.min.js"></script>
<script src="js/exif.js"></script>
<script src="jp4-canvas.js"></script>
<script src="js/jquery-jp4.js"></script>
</body>
</html>
src/jp4-canvas/jp4-canvas.js 0 → 100644
View file @ 43d5a21d
/*
FILE NAME : jp4-canvas.js
DESCRIPTION: Converts jp4/jp46 files into human perceivable format in html5 canvas.
VERSION: 1.0
AUTHOR: Oleg K Dzhimiev <oleg@elphel.com>
LICENSE: AGPL, see http://www.gnu.org/licenses/agpl.txt
Copyright (C) 2016 Elphel, Inc.
*/
$(function(){
$("#test1").jp4({port:2323,width:600});
$("#test2").jp4({port:2324,width:600});
$("#test3").jp4({port:2325,width:600});
$("#test4").jp4({port:2326,width:600});
});
src/jp4-canvas/jquery-jp4.js 0 → 100644
View file @ 43d5a21d
(function ( $ ) {
$.fn.jp4 = function(options) {
var settings = $.extend({
port: 2323,
rel: "bimg",
mosaic: [["Gr","R"],["B" ,"Gb"]],
width: 600
},options);
var BayerMosaic = settings.mosaic;
var FLIPV = 0;
var FLIPH = 0;
var COLOR_MODE = 0;
var IS_JP4 = false;
var IS_JP46 = false;
var SATURATION = [0,0,0,0];
var cnv_working = $("<canvas>").css({
display:"none"
});
var cnv_display = $("<canvas>");
this.append(cnv_working).append(cnv_display);
get_image();
//end
function get_image(){
var ts = new Date().getTime();
var canvas = cnv_working;
var scaled_canvas = cnv_display;
IS_JP4 = false;
IS_JP46 = false;
var http = new XMLHttpRequest();
http.open("GET", "get-image.php?port="+settings.port+"&rel="+settings.rel+"&ts="+ts, true);
http.responseType = "blob";
http.onload = function(e) {
if (this.status === 200) {
var heavyImage = new Image();
heavyImage.onload = function(){
EXIF.getData(this, function() {
//update canvas size
canvas.attr("width",this.width);
canvas.attr("height",this.height);
parseEXIFMakerNote(this);
canvas.drawImage({
x:0, y:0,
source: heavyImage,
load: redraw,
//scale: 1,
fromCenter: false
});
var tw = this.width;
var th = this.height;
var tr = tw/th;
var sctx = scaled_canvas[0].getContext('2d');
var w = Math.round(settings.width);
var h = Math.round(w/tr);
sctx.canvas.width = w;
sctx.canvas.height = h;
cscale = Math.round(w/this.width*100)/100;
//console.log("cscale is "+cscale);
sctx.scale(cscale,cscale);
sctx.drawImage(canvas[0],0,0);
});
};
heavyImage.src = URL.createObjectURL(http.response);
}
};
http.send();
}
function redraw(){
$(this).draw({
fn: function(ctx){
if (IS_JP4||IS_JP46){
pixelBlocksReorder(ctx);
demosaic_bilinear(ctx);
// RGB > YCbCr x SATURATION > RGB
// Taking SATURATION[0] = 1/GAMMA[0] (green pixel of GR-line)
saturation(ctx,SATURATION[0]);
}
get_image();
}
});
}
// reorder blocks if needed
function pixelBlocksReorder(ctx){
var width = ctx.canvas.width;
var height = ctx.canvas.height;
var inputImage = ctx.getImageData(0,0,width,height);
var iPixels = inputImage.data;
var outputImage = ctx.createImageData(width,height);
var oPixels = outputImage.data;
// img.data is a long 1-D array with the following structure:
// pix[i+0] - red
// pix[i+1] - green
// pix[i+2] - blue
// pix[i+3] - alpha
// buffer for reordering pixels
var macroblock = new Array(); //16x16
for (var y=0;y<16;y++) macroblock[y]=new Array();
// in JP4 format the 16x16 block is 32x8 (GRBG)
// the 1st line of 32x8 blocks is the left half of the image
// the 2nd line of 32x8 blocks is the right half
// vertical step = 16 pixels
for (yb=0;yb<(height>>4);yb++){
// horizontal step = 16 pixels
for (xb=0;xb<(width>>4);xb++) {
if (IS_JP4) {
// 32x8 block reorder into 16x16
for (nb=0;nb<4;nb++) {
xbyr= nb&1; // horizontal odd-even
ybyr=(nb>>1)&1; // vertical odd-even
for (y=0;y<8;y++) {
// xb < half image -> 1st line of 32x8
// xb >= half image -> 2nd line of 32x8
//offset=(((yb<<4)+y)*width)+(nb<<3)+((xb>=(width>>5))?(((xb<<5)-width)+(width<<3)):(xb<<5));
offset=(((yb<<4)+y)*width)+(nb<<3)+(xb<<5)+((xb>=(width>>5))?((width<<3)-width):0);
for (x=0;x<8;x++) {
macroblock[(y<<1)|ybyr][(x<<1)|xbyr]=iPixels[4*(offset+x)];
}
}
}
}
if (IS_JP46) {
for (y=0;y<16;y++) {
offset=((yb<<4)+y)*width+(xb<<4);
for (x=0;x<16;x++) {
macroblock[((y<<1)&0xe)|((y>>3)&0x1)][((x<<1)&0xe)|((x>>3)&0x1)]=iPixels[4*(offset+x)];
}
}
}
for (y=0;y<16;y++) {
offset=width*((yb<<4)+y)+(xb<<4);
for (x=0;x<16;x++) {
//red +0, green +1, blue +2, alpha +3
// thinking: GRBG
oPixels[4*(offset+x)+0] = ((BayerMosaic[y%2][x%2]=="R" ) )?macroblock[y][x]:0;
oPixels[4*(offset+x)+1] = ((BayerMosaic[y%2][x%2]=="Gr")||(BayerMosaic[y%2][x%2]=="Gb"))?macroblock[y][x]:0;
oPixels[4*(offset+x)+2] = ((BayerMosaic[y%2][x%2]=="B" ) )?macroblock[y][x]:0;
oPixels[4*(offset+x)+3] = 255;
}
}
}
}
ctx.putImageData(outputImage,0,0);
}
// demosaic GRBG array - bilinear
function demosaic_bilinear(ctx){
var width = ctx.canvas.width;
var height = ctx.canvas.height;
var outputImage = ctx.getImageData(0,0,width,height);
var oPixels = outputImage.data;
var x_l = 0, x_r = 0;
var y_t = 0, y_b = 0;
for(var y=0;y<height;y++){
for(var x=0;x<width;x++){
x_l = (x==0)?1:(x-1);
x_r = (x==(width-1))?(width-2):(x+1);
y_t = (y==0)?1:(y-1);
y_b = (y==(height-1))?(height-2):(y+1);
//Gr
if (BayerMosaic[y%2][x%2]=="Gr"){
oPixels[4*(width*y+x)+0]=1/2*(oPixels[4*(width*(y+0)+(x_l))+0]+oPixels[4*(width*(y+0)+(x_r))+0]);
oPixels[4*(width*y+x)+2]=1/2*(oPixels[4*(width*(y_b)+(x+0))+2]+oPixels[4*(width*(y_t)+(x+0))+2]);
}
//R
if (BayerMosaic[y%2][x%2]=="R"){
oPixels[4*(width*y+x)+1]=1/4*(oPixels[4*(width*(y_t)+(x+0))+1]+oPixels[4*(width*(y+0)+(x_l))+1]+oPixels[4*(width*(y+0)+(x_r))+1]+oPixels[4*(width*(y_b)+(x+0))+1]);
oPixels[4*(width*y+x)+2]=1/4*(oPixels[4*(width*(y_t)+(x_l))+2]+oPixels[4*(width*(y_t)+(x_r))+2]+oPixels[4*(width*(y_b)+(x_l))+2]+oPixels[4*(width*(y_b)+(x_r))+2]);
}
//B
if (BayerMosaic[y%2][x%2]=="B"){
oPixels[4*(width*y+x)+0]=1/4*(oPixels[4*(width*(y_t)+(x_l))+0]+oPixels[4*(width*(y_t)+(x_r))+0]+oPixels[4*(width*(y_b)+(x_l))+0]+oPixels[4*(width*(y_b)+(x_r))+0]);
oPixels[4*(width*y+x)+1]=1/4*(oPixels[4*(width*(y_t)+(x+0))+1]+oPixels[4*(width*(y+0)+(x_l))+1]+oPixels[4*(width*(y+0)+(x_r))+1]+oPixels[4*(width*(y_b)+(x+0))+1]);
}
//Gb
if (BayerMosaic[y%2][x%2]=="Gb"){
oPixels[4*(width*y+x)+0]=1/2*(oPixels[4*(width*(y_t)+(x+0))+0]+oPixels[4*(width*(y_b)+(x+0))+0]);
oPixels[4*(width*y+x)+2]=1/2*(oPixels[4*(width*(y+0)+(x_l))+2]+oPixels[4*(width*(y+0)+(x_r))+2]);
}
}
}
ctx.putImageData(outputImage,0,0);
}
function saturation(ctx,s){
var width = ctx.canvas.width;
var height = ctx.canvas.height;
var inputImage = ctx.getImageData(0,0,width,height);
var iPixels = inputImage.data;
var r,g,b;
var Y,Cb,Cr;
for(var y=0;y<height;y++){
for(var x=0;x<width;x++){
r = iPixels[4*(width*y+x)+0];
g = iPixels[4*(width*y+x)+1];
b = iPixels[4*(width*y+x)+2];
Y = 0.299*r+0.5870*g+ 0.144*b;
Cb = 128+s*(-0.1687*r-0.3313*g+ 0.500*b);
Cr = 128+s*( 0.5*r-0.4187*g-0.0813*b);
if (Cb<0) Cb=0; if (Cb>255) Cb=255;
if (Cr<0) Cr=0; if (Cr>255) Cr=255;
r = Y + 1.402*(Cr-128);
g = Y - 0.34414*(Cb-128)-0.71414*(Cr-128);
b = Y + 1.772*(Cb-128);
if (r<0) r=0; if (r>255) r=255;
if (g<0) g=0; if (g>255) g=255;
if (b<0) b=0; if (b>255) b=255;
iPixels[4*(width*y+x)+0]=r;
iPixels[4*(width*y+x)+1]=g;
iPixels[4*(width*y+x)+2]=b;
iPixels[4*(width*y+x)+3]=255;
}
}
ctx.putImageData(inputImage,0,0);
}
function parseEXIFMakerNote(src){
var exif_orientation = EXIF.getTag(src,"Orientation");
//console.log("Exif:Orientation: "+exif_orientation);
var MakerNote = EXIF.getTag(src,"MakerNote");
//FLIPH & FLIPV
if (typeof MakerNote !== 'undefined'){
FLIPH = (MakerNote[10] )&0x1;
FLIPV = (MakerNote[10]>>1)&0x1;
var tmpBayerMosaic = Array();
for (var i=0;i<BayerMosaic.length;i++){tmpBayerMosaic[i] = BayerMosaic[i].slice();}
if (FLIPV==1){
for(i=0;i<4;i++){BayerMosaic[(i>>1)][(i%2)] = tmpBayerMosaic[1-(i>>1)][(i%2)];}
for(i=0;i<BayerMosaic.length;i++){tmpBayerMosaic[i] = BayerMosaic[i].slice();}
}
if (FLIPH==1){
for(i=0;i<4;i++){BayerMosaic[(i>>1)][(i%2)] = tmpBayerMosaic[(i>>1)][1-(i%2)];}
}
}
//console.log("MakerNote: Flips: V:"+FLIPV+" H:"+FLIPH);
//COLOR_MODE ----------------------------------------------------------------
if (typeof MakerNote !== 'undefined') COLOR_MODE=(MakerNote[10]>>4)&0x0f;
switch(COLOR_MODE){
case 2: IS_JP46 = true; break;
case 5: IS_JP4 = true; break;
//default:
}
//var gains = Array();
//var blacks = Array();
var gammas = Array();
//var gamma_scales = Array();
//var blacks256 = Array();
//var rgammas = Array();
//SATURATION ----------------------------------------------------------------
if (typeof MakerNote !== 'undefined'){
for(i=0;i<4;i++){
//gains[i]= MakerNote[i]/65536.0;
//blacks[i]=(MakerNote[i+4]>>24)/256.0;
gammas[i]=((MakerNote[i+4]>>16)&0xff)/100.0;
//gamma_scales[i]=MakerNote[i+4] & 0xffff;
}
/*
for (i=0;i<4;i++) {
rgammas[i]=elphel_gamma_calc(gammas[i], blacks[i], gamma_scales[i]);
}
console.log(rgammas);
//adjusting gains to have the result picture in the range 0..256
min_gain=2.0*gains[0];
for (i=0;i<4;i++){
if (min_gain > (gains[i]*(1.0-blacks[i]))) min_gain = gains[i]*(1.0-blacks[i]);
}
for (i=0;i<4;i++) gains[i]/=min_gain;
for (i=0;i<4;i++) blacks256[i]=256.0*blacks[i];
*/
for (i=0;i<4;i++) SATURATION[i] = 1/gammas[i];
//console.log("MakerNote: Saturations: "+SATURATION[0]+" "+SATURATION[1]+" "+SATURATION[2]+" "+SATURATION[3]);
}
}
/*
function elphel_gamma_calc(gamma,black,gamma_scale){
gtable = Array();
rgtable = Array();
black256=black*256.0;
k=1.0/(256.0-black256);
if (gamma < 0.13) gamma=0.13;
if (gamma >10.0) gamma=10.0;
for (var i=0;i<257;i++) {
x=k*(i-black256);
if (x<0.0) x=0.0;
ig = 0.5+65535.0*Math.pow(x,gamma);
ig = (ig*gamma_scale)/0x400;
if (ig>0xffff) ig=0xffff;
gtable[i]=ig;
}
// now gtable[] is the same as was used in the camera
// FPGA was using linear interpolation between elements of the gamma table, so now we'll reverse that process
indx=0;
for (i=0;i<256;i++) {
outValue=128+(i<<8);
while ((gtable[indx+1]<outValue) && (indx<256)) indx++;
if (indx>=256) rgtable[i]=65535.0/256;
else if (gtable[indx+1]==gtable[indx])
rgtable[i]=i;
else
rgtable[i]=indx+(1.0*(outValue-gtable[indx]))/(gtable[indx+1] - gtable[indx]);
}
return rgtable;
}
*/
return this;
};
}( jQuery ));
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