Multi-compatible low and high dynamic range and high bit-depth texture and video encoding system

1. A method of processing image data comprising:

generating image data;

separating selected component data from the image data;

generating linearly interpolated and quantized data from the separated component data;

clamping the separated component data;

generating a mask by applying a threshold to the clamped component data;

dividing values of the clamped component data by values of the component data to obtain fractional component data;

multiplying the masked fractional component data to generate masked fractional data;

inverting the mask;

multiplying the inverted mask and the linearly interpolated and quantized component data to generate masked linearly interpolated and quantized component data; and

adding the masked linearly interpolated and quantized component data and the masked fractional data.

2. The method of claim 1 , further comprising compressing the added masked linearly interpolated and quantized component data and masked fractional data.

3. The method of claim 1 , wherein generating linearly interpolated and quantized component data from the component data comprises:

compressing the image data;

quantizing values of a selected component of the compressed image data;

generating a linearly interpolated value for each quantization value:

calculating a first difference between a corresponding value of the selected component of the high dynamic range image data and a current quantization value;

calculating a second difference between a quantization value of a next quantized value and the current quantized value; and

calculating an absolute value of a ratio between the first difference and the second difference.

4. The method of claim 1 , wherein the selected component comprises luminance data.

5. The method of claim 1 , wherein the selected component comprises at least one RGB color component.