@@ -59,7 +57,7 @@ type set in the metadata is "Palette", palette color will be used.
-
+
If no metadata is supplied when encoding an image, the header is
initialized from the image being encoded, and no optional chunks are
included.
@@ -85,7 +83,7 @@
The child nodes of the bKGD, sBIT, and
tRNS chunks must match the image's color type.
-
+
Certain chunks may meaningfully appear multiple times in a PNG file, in particular the text-related chunks. In order to simplify the @@ -104,8 +102,8 @@
<!DOCTYPE "javax_imageio_png_1.0" [
- <!ELEMENT "javax_imageio_png_1.0" (IHDR?, PLTE?, bKGD?, cHRM?,
- gAMA?, hIST?, iCCP?, iTXt?, pHYS?, sBIT?, sPLT?, sRGB?, tEXt?,
+ <!ELEMENT "javax_imageio_png_1.0" (IHDR?, PLTE?, bKGD?, cHRM?,
+ gAMA?, hIST?, iCCP?, iTXt?, pHYS?, sBIT?, sPLT?, sRGB?, tEXt?,
tIME?, tRNS?, zTXt?, UnknownChunks?)>
<!ELEMENT "IHDR" EMPTY>
@@ -123,7 +121,7 @@
<!ATTLIST "IHDR" "bitDepth" ("1" | "2" | "4" | "8" | "16")
#REQUIRED>
<!-- The bit depth of the image samples -->
- <!ATTLIST "IHDR" "colorType" ("Grayscale" | "RGB" | "Palette" |
+ <!ATTLIST "IHDR" "colorType" ("Grayscale" | "RGB" | "Palette" |
"GrayAlpha" | "RGBAlpha") #REQUIRED>
<!-- The color type of the image -->
<!ATTLIST "IHDR" "compressionMethod" ("deflate") #REQUIRED>
@@ -318,7 +316,7 @@
<!ATTLIST "pHYS" "unitSpecifier" ("unknown" | "meter") #REQUIRED>
<!-- The unit specifier for this chunk (i.e., meters) -->
- <!ELEMENT "sBIT" (sBIT_Grayscale | sBIT_GrayAlpha | sBIT_RGB |
+ <!ELEMENT "sBIT" (sBIT_Grayscale | sBIT_GrayAlpha | sBIT_RGB |
sBIT_RGBAlpha | sBIT_Palette)>
<!-- The sBIT chunk, containing significant bit information -->
@@ -437,8 +435,8 @@
<!ELEMENT "sRGB" EMPTY>
<!-- The sRGB chunk, containing rendering intent information -->
- <!ATTLIST "sRGB" "renderingIntent" ("Perceptual" |
- "Relative colorimetric" | "Saturation" |
+ <!ATTLIST "sRGB" "renderingIntent" ("Perceptual" |
+ "Relative colorimetric" | "Saturation" |
"Absolute colorimetric") #REQUIRED>
<!-- The rendering intent -->