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Commit 69057bd5 authored by Andrey Filippov's avatar Andrey Filippov
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fixed 2d correlation for negative values

parent 22872131
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src/main/java/com/elphel/imagej/tileprocessor/Correlation2d.java
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...@@ -1152,6 +1152,8 @@ public class Correlation2d { ...@@ -1152,6 +1152,8 @@ public class Correlation2d {
if (offset >= 0.0) { if (offset >= 0.0) {
if ((fc0 > -offset) && (fc1 > -offset)) { if ((fc0 > -offset) && (fc1 > -offset)) {
cc = Math.sqrt((fc0 + offset) * (fc1 + offset)) - offset; cc = Math.sqrt((fc0 + offset) * (fc1 + offset)) - offset;
} else {
cc = -offset; // smallest value
} }
} else { } else {
cc = 0.5*(fc0+fc1); cc = 0.5*(fc0+fc1);
......
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