- have team leader fork this repository
- have team leader add team members as collaborators to the team fork
- team members should clone team fork
- write all of your code in a directory name
bitmap-+<team name>e.g.bitmap-weasels - submit a pull request to this repository when done
- each person will submit a link to their own PR in canvas
- each person write a question and observation on canvas
- tests: 3pts
- gulpfile/package.json: 2pts
- read bitmap meta data: 5pts
- successfully apply transforms: 5pts
- project design and organization: 5pts
For this assignment you will be building a bitmap (.bmp) reader and transformer. It will read a bitmap in from disk, run one or more color transforms on the bitmap and then write it out to a new file. This project will require the use of node buffers in order to manipulate binary data. Your project should include tests, as well as a gulpfile.js, package.json, .eslintrc, README.md, and a .gitignore. Make sure to run all your code through eslint. The process will look something like this:
- open the original bitmap file using fs and read it into a buffer
- convert the buffer header data into a Javascript Object (using constructors)
- run a transform on the buffer directly
- write the buffer to a new file
The wikipedia article found here Bitmap Specification describes the byte specification of a "windows bitmap file." We'll be working with the simplest version, meaning no compression.
- your project should have three (or more) transforms
- invert the colors (hint: subtract every color value from the max color value which is 255),
- grayscale the colors (hint: multiply each color value by a constant, just make sure your values don't go over 255)
- (red|green|blue)scale the colors (hint: same as above but only multiply one of the colors)
- ability to handle various sized bitmap
- ability to handle LE and BE computers with a single if statement
- utilizes a command line interface (CLI)
- CLI can select the transforms