Controll and Blakberry Image effect


Hello again,

Regarding the negatives, it would be enough to take the R, G, B values and subtract them from the maximum value to get the R, G, B values again? Example: If your balance is 0 to 255:

newRed = 255 - oldRed;

Alternatively, if your balance is 0 to 1.0, then you must use 1.0 as the upper limit.

For what is monochrome, my recommendation would be calculating the grayscale value to get a certain luminescence, then choose a threshold value for this level of gray. If it is below the threshold, set it to black, otherwise set it to white.

There are a number of algorithms out there, but the above would be my first approach.

Erik Oros

BlackBerry Development Advisor

Tags: BlackBerry Developers

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