# HG changeset patch
# User Sebastien Jodogne <s.jodogne@gmail.com>
# Date 1745831120 -7200
# Node ID 0045d4f23ebac622b05c07ad94ea4c01b9145713
# Parent  14303bf258b0bf6f772fe1bbee1584dd2c3f96fe
fix

diff -r 14303bf258b0 -r 0045d4f23eba Framework/ImageToolbox.cpp
--- a/Framework/ImageToolbox.cpp	Sun Apr 27 20:27:54 2025 +0200
+++ b/Framework/ImageToolbox.cpp	Mon Apr 28 11:05:20 2025 +0200
@@ -48,7 +48,15 @@
     bool IsNear(double a,
                 double b)
     {
-      return std::abs(a - b) < 100.0 * std::numeric_limits<double>::epsilon();
+      return IsNear(a, b, 10.0 * std::numeric_limits<float>::epsilon());
+    }
+
+
+    bool IsNear(double a,
+                double b,
+                double threshold)
+    {
+      return std::abs(a - b) < threshold;
     }
 
 
diff -r 14303bf258b0 -r 0045d4f23eba Framework/ImageToolbox.h
--- a/Framework/ImageToolbox.h	Sun Apr 27 20:27:54 2025 +0200
+++ b/Framework/ImageToolbox.h	Mon Apr 28 11:05:20 2025 +0200
@@ -36,6 +36,10 @@
     bool IsNear(double a,
                 double b);
 
+    bool IsNear(double a,
+                double b,
+                double threshold);
+
     Orthanc::ImageAccessor* Allocate(Orthanc::PixelFormat format,
                                      unsigned int width,
                                      unsigned int height);
diff -r 14303bf258b0 -r 0045d4f23eba ViewerPlugin/Plugin.cpp
--- a/ViewerPlugin/Plugin.cpp	Sun Apr 27 20:27:54 2025 +0200
+++ b/ViewerPlugin/Plugin.cpp	Mon Apr 28 11:05:20 2025 +0200
@@ -472,17 +472,17 @@
 
       OrthancWSI::LABColor lab;
       if (!OrthancWSI::LABColor::DecodeDicomRecommendedAbsentPixelCIELab(lab, "65535\\0\\0") ||
-          !OrthancWSI::ImageToolbox::IsNear(lab.GetL(), 100.0) ||
-          !OrthancWSI::ImageToolbox::IsNear(lab.GetA(), -128.0) ||
-          !OrthancWSI::ImageToolbox::IsNear(lab.GetB(), -128.0))
+          !OrthancWSI::ImageToolbox::IsNear(lab.GetL(), 100.0, 0.001) ||
+          !OrthancWSI::ImageToolbox::IsNear(lab.GetA(), -128.0, 0.001) ||
+          !OrthancWSI::ImageToolbox::IsNear(lab.GetB(), -128.0, 0.001))
       {
         throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
       }
 
       if (!OrthancWSI::LABColor::DecodeDicomRecommendedAbsentPixelCIELab(lab, "0\\32896\\65535") ||
-          !OrthancWSI::ImageToolbox::IsNear(lab.GetL(), 0.0) ||
-          !OrthancWSI::ImageToolbox::IsNear(lab.GetA(), 0.0) ||
-          !OrthancWSI::ImageToolbox::IsNear(lab.GetB(), 127.0))
+          !OrthancWSI::ImageToolbox::IsNear(lab.GetL(), 0.0, 0.001) ||
+          !OrthancWSI::ImageToolbox::IsNear(lab.GetA(), 0.0, 0.001) ||
+          !OrthancWSI::ImageToolbox::IsNear(lab.GetB(), 127.0, 0.001))
       {
         throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
       }