using bmptoraster utility

Hi Rohit,

By default, the "bmpToRaster" will generate the header file in compressed format. In the generated file, the three Least Significant Bytes will indicate the pixel value. The Most Significant Byte of a word will indicate the number of times the pixel repeats. If the number is <256 then, the Most Significant Byte will contain the count. If the number is >256, the number will be stored in the next WORD.

Hi Shankari,

Yes I used a linux machine to build the application using make and got the a.out file, but unable to convert bmp file into header file. By the way, how to determine the number of rows and columns?

Hi Rohit,

Open your bmp file using any of the utility such as "MSpaint" . It will show the length and breadth in terms of pixels.

For example :
rows ( in pixels) x columns (pixels)
640x720 px

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Hi Shankari,

I have standard lena.bmp file, which I opened in Paint and found that its 512x512 image. As per readme file, the command to convert the bmp file to header file is-

./a.out <No.of ROWS> <No.of Columns> <Source File Name> <Destination File name> <image format required 565/24><pixel odering RGB/BGR>

So, to get a header file..I put the command...
./a.out 512 512 lena.bmp header.h 565 RGB

This generates segmentation fault

Hi Shankari,

One more question, I have an array of image generated using bmptoc utility, this seems to have a slightly diffferent format than bmptoraster array, can it be used to display at the LCD using raster example from starterware, what changes are required to do so? Because I tried the starightforward way, and it does not display any image at the LCD except for some flickering.