cs50-filter

A CS50 Project - Image manipulation and filtering

Getting started

Clone the repository, or download it as a zip file and unzip it

$ git clone git@github.com:tomwhross/cd50-filter.git

Running the program

The program takes three arguments

1. The filter switch

-g: apply greyscale (black and white) filter
-s: apply sepia filter
-r: relect the image horizontally
-b: blur the image with a box-blur filter

2. The input image file
3. The output image file

Example applying grey scale:

$ ./filter -g images/yard.bmp out.bmp

Compiling

Run the following to compile a new version:

$ make -B filter

Note the -B flag (for always-make) may or may not be required depending on your setup

MacOS & Docker

If you are running on a version of MacOS on a version later than Mojave, C development can be somewhat difficult. One solution is to use Docker. To compile or run this program, or to debug it or run valgrind on it, run the following first:

$ docker run -it --rm -v "$PWD":/usr/src/filter  nloomans/codam

This will allow you to perform actions like the following with ease:

# cd usr/src/filter
# make -B filter
# valgrind ./filter -r images/yard.bmp reflect_yard.bmp
# ./filter -g images/yard.bmp out.bmp