A picture is worth a thousand words
Are there hidden messages in pictures?
How Does It Work?
Step 1: Original Image
Uploaded image
Step 2: Grayscale Conversion
Convert to grayscale, where each pixel has a value from 0 (black) to 1 (white)
Step 3: Pixel to Letter Mapping
Divide the grayscale range (0-1) into 26 equal bins and randomly assign a letter to each bin
Step 4: Generate String
abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrst
zyxwvutsrqponmlkjihgfedcbazyxwvutsrqponmlkjihg
qwertyuiopasdfghjklzxcvbnmqwertyuiopasdfghjklz
mnbvcxzlkjhgfdsapoiuytrewqmnbvcxzlkjhgfdsapoiu
abcmnopqrstuvwxydefghijklzabcmnopqrstuvwxydefg
zyxmlkjihgfedcbawvutsrqponzyxmlkjihgfedcbawvut
qazwsxedcrfvtgbyhnujmikolpqazwsxedcrfvtgbyhnuj
plokimjunhybgtvfrcdexswzaqplokimjunhybgtvfrcdex
aeiouybcdfghjklmnpqrstvwxzaeiouybcdfghjklmnpqrs
zxwvtsrqpnmlkjhgfdcbyuoieazxwvtsrqpnmlkjhgfdcby
abcdefzyxwvumlkjitsrqponghabcdefzyxwvumlkjitsrq
zyxwvuabcdefmlkjitsrqponghazyxwvuabcdefmlkjitsr
qwertymnbvcxasdfghuioplkjzqwertymnbvcxasdfghuio
mnbvcxqwertyasdfghuioplkjzmnbvcxqwertyasdfghuio
The mapping generates a long string of letters from all pixels in the image
Step 5: Word Extraction
Run an algorithm to get all substrings that make a word in this long string
Step 6: Output
This creates a unique "signature" of words for each image.
The random seed is generated from the current date, so it is different every day
Meaning, if your image means something different every day :D
Thought about this because of Sarthak Mangla