Image-O-Matic

A C project to manipulate PNG images using the lodepng library

To run it, download the repo and run make inside the directory. Afterwards, run ./Imageomatic.

Commands

• A or B followed by file name, loads an image into register A or B respectively
• + <filename> writes the image in register A to a new file with name <filname>
• C copies the content of register B to register A
• Z terminates the program
• Q turn the image to grayscale. Only for register A

• N turns the image in. regsiter A to a negative image. Resulting image will be stored in register A.

• H scales the image in register A to half its original size. Resulting image will be stored in register A.

• P <color> <width> <height> creates a new image with just the color <color>. <color> can be hexadecimal or a name of a color inside cores.txt. Resulting image will be stored in register A.

• R rotates the image in register A 90 degrees. Resulting image will be stored in register A.

• O posterizes the image (reduced color pallete) in register A. Resulting image will be stored in register A.

• G <width> <height> creates a image simulating the waves created by a drop of water. Resulting image will be stored in register A.

• D blurs the image in register A. This is not gaussian blur. Resulting image will be stored in register A.

• M places a mask onto the image saved in register A. The mask is saved in register B. The mask and the image must have the same size. Resulting image will be stored in register A.

• F <width> <height> <scale> creates an image with a graph representation of a function. Resulting image will be stored in register A.

• T converts the image in register A using a dithering algorithm. Resulting image will be stored in register A.

• E conceals a message into the image in register A, also known as steganography. It uses 6-bit ASCII tables to store the text in the two least-significant bits of the R, G and B components of the image. Resulting image will be stored in register A.