caspercasanova / codingChallenge

A coding challenge for a company

BMP Negative made by Nicholas Lopez

The purpose of this app was to satisfy a coding challenge for a company that will go unnamed. The main objective is to create a photo negative from an image stored in the BMP File Format.

The Project comes with 2 Test Images and you can add your own if you'd like.

Description

The Objectives are as follow:

• The Program must be non-destructive
• Assume non-compressed images
• Handles Errors Appropriately
• KISS Keep It Simple Stupid (Rhetorical Explanation)
• NO USE OF EXTERNAL IMAGE PROCESSING LIBRARIES

Executing program

To get started

Clone the Repo.

1. In console @ root dir type and enter npm install
2. In console @ root dir run npm run start
3. Presto! The Image-Negative should be in the /negatives folder

Note: If you want to convert your own image, add the image to the /images/dir and change the path accordingly in the code, save and run NPM START once more. TypeScript will rebuild the lib directory and run the code. Visit src/index if intrigued.

• You can also run the test entering in the console npm run test

Acknowledgments

Inspiration, code snippets, Resources, etc.

• stack-overflow-question
• installing-typescript
• functional-style-async-class-constructors
• bmp-imageConverter
• Byte-By-Byte Image creation
• Bitmaps
• Reading a header
• Inverting RBGs
• Buffers In JS

Dependencies

• Node.js Version 14.15 / NPM / TypeScript / Possibly VSCode (to make things easier)?