Data receiving device and image forming apparatus using same

摘要

The position of each pixel of an original image is corrected for projection in order to eliminate distortion in the projection image generated by the relationship between the projection image used to photograph the original image and the projection method used to project the original image in a planetarium. First, a density data table corresponding to each pixel position is prepared for every frame of the motion image data. Then, an image location table is generated to correlate the converted pixel position converted to eliminate distortion in the projection image to the pixel position prior to conversion. Then, the original density data at each converted pixel position are determined from the density data table with reference to the pixel position before conversion in the image location table. In this way a distortion free projection image is obtained by converting and projecting the pixel positions of the motion image.