Patent ID: 8655062
Filing Date: 2014-02-18
Classification: H04N

Abstract:
1. An image decoding method of an image processing apparatus comprising a central processing unit (CPU) and a graphics processing unit, wherein the CPU comprises an entropy decoder, an inverse discrete cosine transformation (IDCT) module, a color space converting module, a first table specification and a second table specification, the method comprising: retrieving input image data using the CPU; processing the input image data as a two-dimensional quantized image according to the first table specification using the entropy decoder; performing a dequantizing operation on the input image data according to the second table specification using the graphics processing unit, wherein the dequantizing operation performed by the graphics processing unit comprises: performing an IDCT operation on the dequantized input image data using the IDCT module; and performing a color space conversion on the IDCT input image data and outputting the converted image data using the color space converting module.