Hi (challenge for Hartmut -) Is it hard to implement something \pdfximage ... colorspace {...} ... {filename} Where the colorspace spec replaces the one present in the graphic? (in addition, \pdflastximagedepth : 0 = no bitmap, 8, 16, 24, 32 =bitmap) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
My name is not Hartmut, but:
Is it hard to implement something
\pdfximage ... colorspace {...} ... {filename}
Where the colorspace spec replaces the one present in the graphic?
I think it is hard, but if it would be done, it would be relatively easy to add subsampling at the same time, because the image then needs to be decompressed and partially interpreted anyway ...
(in addition, \pdflastximagedepth : 0 = no bitmap, 8, 16, 24, 32 =bitmap)
Keep in mind that this number does not have any relation to the used colorspace. PNG has 4-bit and 16-bit greyscale, for example. Greetings, Taco
Taco Hoekwater wrote:
My name is not Hartmut, but:
Is it hard to implement something
\pdfximage ... colorspace {...} ... {filename}
Where the colorspace spec replaces the one present in the graphic?
I think it is hard, but if it would be done, it would be relatively easy to add subsampling at the same time, because the image then needs to be decompressed and partially interpreted anyway ...
(in addition, \pdflastximagedepth : 0 = no bitmap, 8, 16, 24, 32 =bitmap)
Keep in mind that this number does not have any relation to the used colorspace. PNG has 4-bit and 16-bit greyscale, for example.
I'm talking about the /ColorSpace value in: Type /XObject /Subtype /Image /Width 472 /Height 591 /BitsPerComponent 8 /ColorSpace /DeviceGray /Length 278952 I want to play with replacements of /DeviceGray for instance; experiments so far are promising -) For that i need access to the BitsPerComponent (i.e. per color component) info Hans
participants (2)
-
Hans Hagen -
Taco Hoekwater