| 摘要 |
PURPOSE: An image processing apparatus, an image processing method, and a program for attaining image processing are provided to process an image at a high speed while simplifying the generation process of an edge direction map by properly interpolating the omitted color components of each pixel. CONSTITUTION: A digital camera(100) is equipped with an image processing apparatus(30). The digital camera includes an optical system(10) that has a group of multiple lenses, an imaging assembly(20) that converts an image of a subject formed by the optical system into electric signals, and the image processing apparatus that receives the electric signals from the imaging assembly and makes the received electric signals subjected to a predetermined series of image processing to generate color image data. The imaging assembly has an image sensor(24) with a two-dimensional arrangement of multiple fine imaging elements for converting the light intensities into electric signals. A color filter array(22) is provided before the image sensor and has a mosaic arrangement of fine color filters of R(Red), G(Green), and B(Blue). The R color filters, the G color filters, and the B color filters are constructed to allow transmission of R color light, transmission of G color light, and transmission of B color light, respectively. The image sensor captures image data having a mosaic arrangement of image parts responsive to the R light intensities, image parts responsive to the G light intensities, and image parts responsive to the B light intensities according to the mosaic arrangement of the R, G, and B color filters in the color filter array. The image processing apparatus mounted on the digital camera receives the image data of the mosaic arrangement from the imaging assembly and generates color image data with settings of the R component, the G component, and the B component in the respective pixels. In the image processing apparatus of the embodiment, a CPU, a ROM, a RAM, and a data IF(Input/output interface) are interconnected via a bus to enable mutual data transmission. The CPU performs a series of processing to generate the color image data according to a program stored in the ROM. The resulting color image data thus generated may be output to an external device via an external output terminal(40) or may be output to an external recording medium(50).
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