Test Patterns
Posted: Tue May 15, 2007 10:58 pm
Here's my attempt at a test pattern.
The idea behind this one is to include a recognisable image -- I chose Baird over Nipkow because he is much more associated with actual television (in my mind, at least).
The test pattern uses a face to give some idea of "real world" usage. It also includes a greyscale range at the bottom, and both horizontal and vertical 'resolution' indicators. These are basically alternating black/white dots at what I consider optimal resolution (32 x 48 pixels, with a 1:1 pixel aspect ratio).
Finally, the image includes horizontal lines in black and white, and vertical lines in black and white. I can't at this stage think of much more that would be required for a test pattern. Please feel free to modify/improve.
The idea behind this one is to include a recognisable image -- I chose Baird over Nipkow because he is much more associated with actual television (in my mind, at least).
The test pattern uses a face to give some idea of "real world" usage. It also includes a greyscale range at the bottom, and both horizontal and vertical 'resolution' indicators. These are basically alternating black/white dots at what I consider optimal resolution (32 x 48 pixels, with a 1:1 pixel aspect ratio).
Finally, the image includes horizontal lines in black and white, and vertical lines in black and white. I can't at this stage think of much more that would be required for a test pattern. Please feel free to modify/improve.