Patent ID: 6360018
Filing Date: 2002-03-19
Classification: G06T

Abstract:
An image processing apparatus, comprising:a) an input device, having an arrangement for inputting first image data and second image data, the first image data being different from the second image data in a number of pixels of the data forming a picture; b) a block former, arranged for forming first blocks each comprising (mÃ—n) pixels, from the first image data, and second blocks each comprising (iÃ—j) pixels, from the second image data, wherein (mÃ—n)â‰ (iÃ—j); c) a block converter, arranged for converting the first blocks formed by said block former into third blocks of (iÃ—j) pixels, each third block being formed based on a corresponding one of the first blocks, wherein the number of pixels of the picture formed by the first image data is changed by said block converter; and d) an orthogonal transformer, arranged for orthogonally transforming a version of the first image data represented by the third blocks of pixels, based on each third block of pixels, and for orthogonally transforming a version of the second image data represented by the second blocks of pixels, based on each second block of pixels.