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 ...
Search found 3 matches
- 2014-06-12T12:13:48-07:00
- Forum: Users
- Topic: Resize PNG ignores specified depth
- Replies: 2
- Views: 4172
- 2011-09-16T10:58:28-07:00
- Forum: Users
- Topic: How do I invert the colormap (1bpp bmp)?
- Replies: 4
- Views: 14259
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: 14259
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 ...
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 ...