How to Create bmp of bitdepth = 1

[chartahir]

I'm trying to create a bmp image of bitdepth = 1, but unable to do so. The image has always a bitdepth of 32.

How can i do this ?

[fmw42]

I am not sure IM can do that. See BMP formats supported by IM at http://www.imagemagick.org/Usage/formats/#bmp

[chartahir]

I've done it using -monochrome and IM version 6.5, previously with IM version 6.2.8 i was unable to achieve the same.

[anthony]

did you try -depth 1

[chartahir]

No, -depth 1 didn't seem to work,

I'm writing text in image.
But the image is distorted too much when i used -monochrome.

Is there any thing to avoid this ?

[anthony]

-threshold, -ordered-dither

See IM Examples, Quantization and Dithering
http://www.imagemagick.org/Usage/quantize/