Imagemagick finding a colours coordinates

You may want to extract the coordinates of each pixel or pixels of a certain colour in your videos for the purpose of data analysis or manipulation. You can convert parts of your video or the whole video into images and use a program called imagemagick to convert the image into a text file. Imagemagick is an open source program that you can use with your command line terminal.

here is a link to the relevant section of the manual https://imagemagick.org/Usage/files/#txt

commands used in this video:
video to image
ffmpeg -i input.mp4 -ss 00:00:01.001 -vframes 1 out.png
ffmpeg -i input.mp4 out%03d.png

Imagemagick commands

convert out001.png out.txt
convert out001.png -depth 16 out.txt
convert out001.png -unique-colors unique.txt

(the following commands will just print out to a terminal, in order to send it to a text file you will need to add a greater than symbol and then the name of the output file, (the greater than symbol is not permitted to be typed in the description for youtube))
convert blackline2.png txt:- | grep -v "white"
convert blackline2.png txt:- | grep "LightGray"


0:00 intro
0:26 video to image ffmpeg commands
0:38 video to single image by time
0:48 video to images by frame
1:22 command for all pixel coordinates
1:44 16 bit value colours
1:57 coordinates for all colours except one
2:11 coordinates for a specific colour
2:23 getting list of every colour in your image
2:33 thankyou