I tried to convert them on IM 6.4.0-11 Q16-hdri (allows floating
point accuracy), but got the same error message that you did at the
bottom of your idenitfy command.
convert test2.tif -contrast-stretch 0% test2.png
convert: test2.tif: unknown field with tag 33821 (0x841d)
encountered. `TIFFReadDirectory'.
convert: test2.tif: unknown field with tag 33825 (0x8421)
encountered. `TIFFReadDirectory'.
convert test2.tif -normalize test2.png
convert: test2.tif: unknown field with tag 33821 (0x841d)
encountered. `TIFFReadDirectory'.
convert: test2.tif: unknown field with tag 33825 (0x8421)
encountered. `TIFFReadDirectory'.
convert test2.tif test2.png
convert: test2.tif: unknown field with tag 33821 (0x841d)
encountered. `TIFFReadDirectory'.
convert: test2.tif: unknown field with tag 33825 (0x8421)
encountered. `TIFFReadDirectory'.
Note that -normalize will overstretch the data and clip 1% from the ends.
Hi all,
I am new to ImageMagick so please forgive me if this is a silly question. I
have many tiff files from a scientific camera that are supposed to be
grayscale images stored with a 32 bit depth per pixel. I can open them in
ImageJ with the ImageIO plugin (has 32-bit TIFF capability). However, when I
try to use ImageMagick to convert them to some other format (e.g., PNG) I
get a black image. The output from the verbose identify command is below.
The image can be retrieved from:
http://www.leorg.ucdavis.edu/test/test2.tif
Any suggestions on how I can get ImageMagick to successfully convert these
to other formats?
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