add multispectral support to the MIFF format

ImageMagick · Apr 3, 2022 · 8fbf695 · 8fbf695
1 parent 101e955
commit 8fbf695
Showing 1 changed file with 19 additions and 0 deletions.
diff --git a/coders/miff.c b/coders/miff.c
@@ -886,6 +886,21 @@ static Image *ReadMIFFImage(const ImageInfo *image_info,
                 (void) SetImageProperty(image,keyword,options,exception);
                 break;
               }
+              case 'n':
+              case 'N':
+              {
+                if (LocaleCompare(keyword,"number-channels") == 0)
+                  {
+                    image->number_channels=StringToUnsignedLong(options);
+                    break;
+                  }
+                if (LocaleCompare(keyword,"number-meta-channels") == 0)
+                  {
+                    image->number_meta_channels=StringToUnsignedLong(options);
+                    break;
+                  }
+                break;
+              }
               case 'o':
               case 'O':
               {
@@ -2156,6 +2171,10 @@ static MagickBooleanType WriteMIFFImage(const ImageInfo *image_info,
       CommandOptionToMnemonic(MagickPixelTraitOptions,(ssize_t)
       image->alpha_trait));
     (void) WriteBlobString(image,buffer);
+    (void) FormatLocaleString(buffer,MagickPathExtent,
+      "number-channels=%.20g  number-meta-channels=%.20g\n",
+      (double) image->number_channels,(double) image->number_meta_channels);
+    (void) WriteBlobString(image,buffer);
     if (image->alpha_trait != UndefinedPixelTrait)
       (void) WriteBlobString(image,"matte=True\n");
     (void) FormatLocaleString(buffer,MagickPathExtent,