MS Windows Bitmap (BMP)
Bitmap is a home Windows raster format, which is used practically for all possible raster data storage. The following parameters are used to adjust settings of this format.
- bpp - color depth (default - 24 bpp)
- rows - rows direction (default - "Bottom - Top")
- quant - quantization (default - 8)
- dither - dithering (defaylt - yes)
bpp
Bpp parameters specifies the number of bits used to transfer the color of one pixel. Its allowed values are.
- 1 - 1 bpp (Mono)
- 4 - 4 bpp (Indexed)
- 8 - 8 bpp (Indexed)
- 16565 - 16 bpp (5:6:5, RGB Hi color)
- 16 - 16 bpp (5:5:5:1, RGB Hi color)
- 160 - 16 bpp (5:5:5:1, RGBA Hi color)
- 24 - 24 bpp (True color)
- 32 - 32 bpp (True color, RGB)
- 320 - 32 bpp (True color, RGBA)
The default value is: 24.
Example:
rows
Rows parameter specifies the order of saving rows in the resulting file. Its allowed values are:
- bottom_top - rows are saved from bottom to top
- top_bottom - rows are saved from top to bottom
The default value is: top_bottom.
Example:
quant
Quant parameter reduces the number of distinct colors used in an image while preserving visual image quality. Its value is any whole number from 0 to 8.
The default value is: 8.
Example:
dither
Dither is a form of noise, or 'erroneous' signal or data which is added to sample data to minimize quantization error. Dither parameter can accept two values: yes and no.
The default value is: yes.
Example:
general example
ICPCL.exe -convertto bmp bpp:8 rows:top_bottom quant:1 dither:no -source "C:\Original files" -dest "C:\Converted files"
tips
-
Use quant parameter only if bpp parameter value is 1, 4 or 8 bpp.
Example:
ICPCL.exe -convertto bmp bpp:8 quant:3 -source "C:\Original files" -dest "C:\Converted files" -
Use dither parameter only if bpp parameter value is 1, 4 or 8 bpp.
Example:
ICPCL.exe -convertto bmp bpp:8 dither:no -source "C:\Original files" -dest "C:\Converted files"