Patent ID: 7409098

Claim:
An image processing apparatus configured to generate, when image data of motion picture is made r times in quantization coarseness upon increasing a quantizing parameter by a predetermined unit amount, change amount data representative of the change amount of the quantizing parameter, the image processing apparatus comprising: index data generating means for generating index data serving as an index of complexity of the image data; change amount data acquiring means for defining a corresponding relationship between the index data and the change amount data such that, when the index data becomes r times, the change amount data is increased by the predetermined unit amount, and for acquiring the change amount data corresponding to the index data generated by the index data generating means; and quantizing parameter generating means for generating the quantizing parameter based on reference data defined based on a code amount assigned to the image data as a subject of coding and of the change amount data representative of the change amount of the quantizing parameter acquired by the change amount data acquiring means.