Coding Challenge #1 | PHP OCR / Text Recognition | Part 1: Letter Recognition

Welcome to my first coding challenge! In this video I start my PHP OCR / Text Recognition project by generating some images of letters in PHP and reading their pixel values and comparing them to each other. In the end I have working code that detects uppercase letters from an image with a single letter (more to come in a future episode).

GitHub: https://github.com/unconv/php-ocr/tree/69437cd31efd337545a7dc568cb4901a5377fdde

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TIMESTAMPS:
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0:00:00 Intro
0:02:50 Creating images of letters with PHP
0:09:50 Creating image resize function with PHP
0:17:00 Testing image resizing
0:18:00 Reading pixel data of letters with PHP
0:24:40 Comparing pixel data of letters
0:28:08 Generating reference letters
0:34:29 Detecting letter from image
0:40:00 Testing letter larger image
0:41:07 Testing letter detection from handwritten letter
0:42:10 Testing letter detection from another font
0:42:32 Debugging reference letter generation
0:47:23 Testing letter detection from another font (again)
0:47:55 Trimming letters with Imagick
1:00:25 Testing letter detection
1:02:43 Next steps