摘要:
There are described an image processing method, an image processing apparatus, an image processing program and an image recording apparatus characterized by reduced computation loads and capable of suppressing the mottled granular noise contained in color image signals and enhancing the sharpness of the image, without generating noises similar to color misregistration and false color contour appearing close to the edge. The image processing method includes the steps of: converting the image signals to luminance signals and chrominance signals; applying a Dyadic Wavelet transform processing to at least the luminance signals; suppressing a signal intensity of a high-frequency luminance component at P-th level, when the intensity of the high-frequency luminance component conforms to a specific condition; applying a Dyadic Wavelet inverse-transform processing to transformed and processed signals; and synthesizing processed luminance signals and the chrominance signals with each other to generate processed image signals.
摘要:
There is described a method for providing processed image data to a client, who requests an image-processing service from an image-processing service provider. The processed image data are generated by processing an original image submitted by the client as an object of the image-processing service. The method includes the steps of acquiring original image data, which include expanded color-range image data, from the original image; determining a first optimizing condition for generating output-referred image data from device characteristic data in respect to the output device, in order to generate optimizing condition data; storing the original image data including the expanded color-range image data and the optimizing condition data, while correlating them; and providing the original image data including the expanded color-range image data and the first optimizing condition data, stored in the storing step, to the client, based on a providing procedure established in advance.