Search found 3 matches
- 2014-06-12T12:13:48-07:00
- Forum: Users
- Topic: Resize PNG ignores specified depth
- Replies: 2
- Views: 3853
Resize PNG ignores specified depth
I have a PNG with 1-bit color. I'm trying to resize it. Identify shows this for the original: Format: PNG (Portable Network Graphics) Class: PseudoClass Geometry: 180x192 Type: Bilevel Endianess: Undefined Colorspace: Gray Channel depth: Gray: 1-bits Channel statistics: Gray: Min: 0 (0) Max: 1 (1) M...
- 2011-09-16T10:58:28-07:00
- Forum: Users
- Topic: How do I invert the colormap (1bpp bmp)?
- Replies: 4
- Views: 13498
Re: How do I invert the colormap (1bpp bmp)?
Negate actually inverts the colormap as well as the pixels - so the print out doesn't change, unfortunately. I want to switch just the pixels OR just the colormap, not both.
- 2011-09-16T07:29:04-07:00
- Forum: Users
- Topic: How do I invert the colormap (1bpp bmp)?
- Replies: 4
- Views: 13498
How do I invert the colormap (1bpp bmp)?
I'm trying to convert 8bpp bitmaps to 1bpp for use with a receipt printer. I can get the correct depth thusly: convert -monochrome -colors 2 -depth 1 source.bmp out.bmp However, this gives me a colormap where 0 => black and 1 => white. The printer, stupidly, ignores the palette in the file and assum...