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print 8bit png transparency as white
Posted: Sun Nov 02, 2014 10:42 am
by dee
Hello,
I have a set of 8bit png images with transparency. How can I print them with transparent parts white?
I tried following:
"File/Print" shows preview with transparent pixels black.
"Create/Contact sheet" renders transparent pixels black.
"Create/Strip of images" renders transparent pixels black.
"Tools/Batch processing" ... I can't find how to change transparent to white.
Stepan
Re: print 8bit png transparency as white
Posted: Sun Nov 02, 2014 10:45 am
by dee
test image
Re: print 8bit png transparency as white
Posted: Sun Nov 02, 2014 11:10 am
by dee
"nconvert.exe -transpcolor 255 255 255 card01.png" ... seems to do nothing, transparent color is still black
Re: print 8bit png transparency as white
Posted: Sun Nov 02, 2014 11:27 am
by dee
i guess do everything wrong today...I tried downloading image magick but
"convert.exe -transparent-color white card01.png card01_1.png"
also seems to do nothing, transparency still black
Re: print 8bit png transparency as white
Posted: Sun Nov 02, 2014 11:36 am
by dee
ok, i have it
"convert.exe -background white -alpha background card01.png card01_1.png"
makes transparent color white
Re: print 8bit png transparency as white
Posted: Mon Nov 03, 2014 6:30 pm
by XnTriq
Please follow these steps (in XnView Classic's view mode), Stepan:
- Edit » Background colour... » Red: 255 / Green: 255 / Blue: 255
- Image » 32 bits
- Image » True Colour
Re: print 8bit png transparency as white
Posted: Tue Nov 04, 2014 8:43 am
by dee
Thanks, it works.
BTW is it possible to do the same in Batch processing? I see transformation "Convert to True Colours" but no "Convert to 32bits".
Re: print 8bit png transparency as white
Posted: Wed Nov 05, 2014 2:15 am
by XnTriq
dee wrote:BTW is it possible to do the same in Batch processing? I see transformation "Convert to True Colours" but no "Convert to 32bits".
I tried…
- Tools » Batch Processing... » Transformations
- Image » Add alpha » Parameters: [ 255 ]
- Convert » Convert to True Colours
… but the background turned out black.
