Make spiral, circular, x-locked, y-locked, and standard movie barcodes
Find the average color of frames in a video. Use these averages to color an output image progressively. The output images often resemble colorful barcodes.
- Spiral: The average frame colors are used to produce a spiral. Time runs clockwise from noon by default.
- Circular (donut): The average frame colors are used to produce a donut. Time runs clockwise from noon by default.
- x-locked (vertical): Find the average color of each column in the frame. This average row will form one horizontal slice of the output image. Time runs from top to bottom.
- y-locked (horizontal): Find the average color of each row in the frame. This average column will form one vertical slice of the output image. Time runs from left to right.
- Standard: The average frame colors form one vertical slice of the output image. Time runs from left to right.
- OpenCV uses a round brush when drawing elliptical arcs. This makes the circular barcode tail overlap the head. Spiral mode is a temporary workaround. I want a proper closed circle with no overlap.
- I would like to map or animate a trail through an hsv cone or 3D color space. It's hard to understand the quantitative jumps in color that occur in the other barcode types. I think an animation through space would help reveal gradual and sudden transitions.
- A small tkinter GUI would be nice for those who are not used to dealing with command line interactions.
- If you sample too many frames when creating circular or spiral barcodes, the image will collapse to a solid circle at the center of the image.
- Movie resolution does not matter for standard, circular, and spiral barcodes
- I've only tested the program on mov and mp4 input files. It may work with other video types.
- Frame count meta data may be incorrect for some input videos. In that case you may have to manually set the dimensions of the output image blanks.
