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| Acmlm's Board - I3 Archive - Hardware / Software - Photoshop - saving as a 4-bit BMP |
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HyperHacker Star Mario Finally being paid to code in VB! If only I still enjoyed that. <_< Wii #7182 6487 4198 1828                    Since: 11-18-05 From: Canada, w00t! My computer's specs, if anyone gives a damn. STOP TRUNCATING THIS >8^( Last post: 6328 days Last view: 6328 days |
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I need to save a file as a 4-bit bitmap in Photoshop, but after reducing it to 16 colours, the only available option is 8-bit.  How can I save as 4-bit? |
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neotransotaku Sledge Brother Liberated from school...until MLK day  Since: 11-17-05 From: In Hearst Field Annex... Last post: 6330 days Last view: 6328 days |
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| write your own program to condense the bytes further | |||
FreeDOS + Giant Red Koopa Legion: freedos = fritos  Since: 11-17-05 From: Seattle Last post: 6328 days Last view: 6328 days |
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| Use ImageMagick, that always works. Particularly, the use of the -depth option on convert. (edited by FreeDOS + on 08-07-06 03:53 AM) |
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Zer0wned Koopa Since: 12-09-05 From: Torrance, ca Last post: 6485 days Last view: 6485 days |
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| copy-paste final image into MS paint, save as 16 color bitmap, its default (and only option) is 4 bit depth. | |||
Ailure Mr. Shine I just want peace...  Since: 11-17-05 From: Sweden Last post: 6328 days Last view: 6328 days |
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Originally posted by Zer0wnedThing is that Paint dosen't save the image with a custom pallete (which photoshop does) which usulaly result in ugly colors.  |
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HyperHacker Star Mario Finally being paid to code in VB! If only I still enjoyed that. <_< Wii #7182 6487 4198 1828 Since: 11-18-05 From: Canada, w00t! My computer's specs, if anyone gives a damn. STOP TRUNCATING THIS >8^( Last post: 6328 days Last view: 6328 days |
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| Yeah, I tried Paint and it was uuuuuuugly.
[edit] ImageMagick created an identical bitmap almost half the filesize, but how can I tell if it's 4-bit? Looking in a hex editor doesn't help much. Photoshop shows it as indexed colour (which could be anything up to 8 bits), but Explorer's properties dialog says it's 32-bit, which is obviously wrong. (edited by HyperMackerel on 08-07-06 04:43 PM) (edited by HyperMackerel on 08-07-06 04:44 PM) |
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MathOnNapkins  1100  In SPC700 HELL Since: 11-18-05 Last post: 6328 days Last view: 6328 days |
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| I think the fact that it is half the size would tell you it's now in 4bpp. Well, it shouldn't be exactly half the size since the file contains things like BITMAPINFOHEADER and BITMAPFILEHEADER. But if the bmp had large dimensions it should be rougly half at this point. | |||
Ice Man Panser Since: 11-18-05 From: Germany Last post: 6427 days Last view: 6364 days |
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Try IrfanView. It tells you how much colors the image has, etc. I think you can also save it as a 4-bit + the colo reduction is kinda good (I use it for my hack.  ) |
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FreeDOS + Giant Red Koopa Legion: freedos = fritos Since: 11-17-05 From: Seattle Last post: 6328 days Last view: 6328 days |
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| Okay that's odd... I just tried ImageMagick myself, and the -depth option isn't working as expected
Can you install the GIMP? Just reduce the image to have an index of 16 colors, save as Microsoft BMP (simply use the .bmp suffix to have it auto-selected ), and that works (seriously, I tried it for myself this time) |
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