no need

imagej_tiffwriter_test.py

-#!/usr/bin/env python3
-
-import struct
-import numpy
-import tifffile
-import math
-
-def imagej_metadata_tags(metadata, byteorder):
-    """Return IJMetadata and IJMetadataByteCounts tags from metadata dict.
-
-    The tags can be passed to the TiffWriter.save function as extratags.
-
-    """
-    header = [{'>': b'IJIJ', '<': b'JIJI'}[byteorder]]
-    bytecounts = [0]
-    body = []
-
-    def writestring(data, byteorder):
-        return data.encode('utf-16' + {'>': 'be', '<': 'le'}[byteorder])
-
-    def writedoubles(data, byteorder):
-        return struct.pack(byteorder+('d' * len(data)), *data)
-
-    def writebytes(data, byteorder):
-        return data.tobytes()
-
-    metadata_types = (
-        ('Info', b'info', 1, writestring),
-        ('Labels', b'labl', None, writestring),
-        ('Ranges', b'rang', 1, writedoubles),
-        ('LUTs', b'luts', None, writebytes),
-        ('Plot', b'plot', 1, writebytes),
-        ('ROI', b'roi ', 1, writebytes),
-        ('Overlays', b'over', None, writebytes))
-
-    for key, mtype, count, func in metadata_types:
-        if key not in metadata:
-            continue
-        if byteorder == '<':
-            mtype = mtype[::-1]
-        values = metadata[key]
-        if count is None:
-            count = len(values)
-        else:
-            values = [values]
-        header.append(mtype + struct.pack(byteorder+'I', count))
-        for value in values:
-            data = func(value, byteorder)
-            body.append(data)
-            bytecounts.append(len(data))
-
-    body = b''.join(body)
-    header = b''.join(header)
-    data = header + body
-    bytecounts[0] = len(header)
-    bytecounts = struct.pack(byteorder+('I' * len(bytecounts)), *bytecounts)
-    return ((50839, 'B', len(data), data, True),
-            (50838, 'I', len(bytecounts)//4, bytecounts, True))
-
-
-def hamming_window(x,N):
-  y = 0.54 - 0.46*math.cos(2*math.pi*x/(N-1))
-  return y
-
-hw = hamming_window
-
-image =  numpy.array([[(255-0*25)*hw(i,512)*hw(j,512) for i in range(512)] for j in range(512)],numpy.float32)
-image = image[numpy.newaxis,...]
-
-ijtags = imagej_metadata_tags({'Labels':["Name1","Name2","Name3","Name4","Name5"]}, '<')
-
-with tifffile.TiffWriter("multipage_test.tiff", bigtiff=False,imagej=True) as tif:
-  for i in range(5):
-    tif.save(image, metadata={'version':'20180905', 'loop':False}, extratags=ijtags)