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Images to Audio

Images to Audio. By Donna Jones. Outline. Image Input Mathematical Calculations Audio Output. Image Input. Take an image that is sent to the Blackfin’s memory Find its red, green, and blue values red = (rmask & imgInput[0]) >> 10; green = (gmask & imgInput[0]) >> 5;

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Images to Audio

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  1. Images to Audio By Donna Jones

  2. Outline • Image Input • Mathematical Calculations • Audio Output

  3. Image Input • Take an image that is sent to the Blackfin’s memory • Find its red, green, and blue values • red = (rmask & imgInput[0]) >> 10; • green = (gmask & imgInput[0]) >> 5; • blue = bmask & imgInput[0];

  4. Mathematical Calculations • Find frequency of the lightwave and then map it to sound frequency • Use these values in conjuction with the RGB values from the image • Use: r = 2*3.14*(fsr/FS)*(t+1); • g = 2*3.14*(fsg/FS)*(t+1); • b = 2*3.14*(fsb/FS)*(t+1); • output = ((red*10000)*sinf(r*t))+((green*10000)*sinf(g*t))+((blue*10000)*sinf(b*t));

  5. Audio Output • The audio is outputted from the formul • iChannel0LeftOut = indivOutput; • iChannel0RightOut = indivOutput;

  6. Issues • Can not compute an entire 64x64 image at once, there is a delay causing a popping sound • Final product only analyzes one pixel, but could maybe be expanded to an entire picture if given more time

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