CS430 Project 1 - Converting ppm files

This project is an introduction to image file types--specifically the intermediary file type *.ppm.

The resulting binary from running make converts between P3 (ascii) and P6 (rawbits) variants of the ppm file format.

Compilation

Run make from the root directory to build the binary. This will generate a binary called ppmrw.

To rebuild, run make clean to remove the binary and any other temporary output files, then run make again. You can also run make clean-all, which will remove the binary and any ppm files in the root directory

Usage

./ppmrw TYPE <input.ppm> <output.ppm>

The arguments are positional and must be presented in the order specified above.

TYPE

• specifies the ppm format you want the output file to be
• There are only two options: 3 or 6.

Example

To convert the file image.ppm to the P6 format and store the result in another file called image_p6.ppm, run the following:

./ppmrw 6 image.ppm image_p6.ppm

Testing

There is a simple shell script that runs tests on two image files in the data/ directory. To run it, do the following:

sh test.sh

If if completes and gets to the output done, then the files were converted successfully and can be viewed in the root directory as out[1-4].ppm.