Abstract: The present invention is an image recording method and apparatus for recording an image represented by at least two sets of image data separated by colors. Based on the image data, images corresponding to the image data are each recorded on different sections of photosensitive material moving in a sub-scan direction, while the photosensitive materials subjected to main scan by a plurality of light beams. Thereafter, the sections of the photosensitive material are superimposed over one another to produce the final image. Relative positions of the images on each section of photosensitive material are provided to substantially coincide with each other by setting a selected number of blank raster lines in a first main scan for each section of the photosensitive material. As a result, an amount of displacement of each of images on the photosensitive materials is reduced when the sections of photosensitive material are superimposed and aligned with one another to produce the final image.

Abstract: The present invention is an image recording method and apparatus for recording an image represented by at least two sets of image data separated by colors. Based on the image data, images corresponding to the image data are each recorded on different sections of photosensitive material moving in a sub-scan direction, while the photosensitive materials subjected to main scan by a plurality of light beams. Thereafter, the sections of the photosensitive material are superimposed over one another to produce the final image. Relative positions of the images on each section of photosensitive material are provided to substantially coincide with each other by setting a selected number of blank raster lines in a first main scan for each section of the photosensitive material. As a result, an amount of displacement of each of images on the photosensitive materials is reduced when the sections of photosensitive material are superimposed and aligned with one another to produce the final image.

Abstract: The present invention is an image recording method and apparatus for recording an image represented by at least two sets of image data separated by colors. Based on the image data, images corresponding to the image data are each recorded on different sections of photosensitive material moving in a sub-scan direction, while the photosensitive materials subjected to main scan by a plurality of light beams. Thereafter, the sections of the photosensitive material are superimposed over one another to produce the final image. Relative positions of the images on each section of photosensitive material are provided to substantially coincide with each other by setting a selected number of blank raster lines in a first main scan for each section of the photosensitive material. As a result, an amount of displacement of each of images on the photosensitive materials is reduced when the sections of photosensitive material are superimposed and aligned with one another to produce the final image.

Abstract: An image processing apparatus for a photosensitive material, having a simple structure in which an image recording position and a punching position on the photosensitive material can correspond relatively to each other can be obtained, by providing a photosensitive material exposure apparatus which records an image on the photosensitive material by main-scanning the film by an exposure device while sub-scanning the film by winding the photosensitive material around either an exposure drum or a plurality of exposure rollers which is driven and rotated by driving force of a driving device, the photosensitive material exposure apparatus comprising a punching unit, a punching controller, a positioning controller, a guiding controller, and an encoder.

Abstract: There is established a process of writing line data into and reading line data from line buffers when a film which is being fed in an auxiliary scanning direction is scanned in a main scanning direction in an interlaced scanning fashion with n recording beams that are emitted from an acoustooptic modulator based on simultaneously supplied n line data. It is assumed that the n line data transferred to channels CH1-CHn of the acoustooptic modulator have respective sequential numbers N (N=1-n). If the line data in a channel CHN exposed in a preceding scanning cycle is stored in any of the line buffers, then the line data of a sequential number N is written into that line buffer. If there is no line data in a channel CHN exposed in a preceding scanning cycle, then the line data of a sequential number N is written into a line buffer according to its sequence by referring to a write sequence table.

Abstract: An image is read by moving a line sensor relative to the image in a subsidiary scanning direction perpendicular to the direction of a pixels array of the line sensor. An image processor receives image signals from the sensor and produces an output image magnified relative to the image in accordance with a magnification ratio. The magnification ratio falls into one of n contiguous magnification ratio ranges between a reference magnification ratio and a minimum magnification ratio.

Abstract: An image processing method and apparatus capable of sufficiently emphasizing binary density image area without deterioration of the image quality of a gray-scale or middle tone image area. During image processing, a density A.sub.0 of a center pixel is converted into a density ?A!.sub.0 by the formula;?A!.sub.0 =A.sub.0 +K.sub.1 .times.(.vertline..SIGMA.(A.sub.0 -A.sub.i).vertline.-K.sub.2).times..SIGMA.(A.sub.0 -A.sub.i)wherein A.sub.i is a density of peripheral pixels surrounding the center pixel and K.sub.1 and K.sub.2 are constants, respectively.

Abstract: A printed material reader that searches for a desired frame by using blips provided on a printed material, and that prevents search errors due to variances in blip lengths. Before a search of a desired frame, the lengths of the blips adjacent to all the frames on the printed material are detected, and the permissible ranges for the blips are determined from a frequency histogram reflecting relative distributions of the blip lengths detected. The blips whose length fall within permissible ranges are counted to search for a desired frame on the microfilm.

Abstract: A method and apparatus for recording an image by simultaneously recording a plurality of scanning lines by a plurality of laser beams. Image data are written sequentially in units of one scanning line into a plurality of memories. The image data of adjacent scanning lines are read simultaneously in order starting with a memory area corresponding to a leading end of the scanning line toward a memory area corresponding to a terminating end thereof. Laser beams are emitted on the basis of the image data read, so as to record the image. Since the plurality of items of image data are read simultaneously from the plurality of memories, the processing speed can be increased as compared with a case where image data are read sequentially from a memory.

Abstract: A print control method for a microfilm reader enlarges a recorded image on a microfilm to the size of an original copy and projects the image on a screen; detects a black frame from an array indicated by image signals which are obtained by being binarized; selects one or more images from the entire area of the images; modifies images other than selected image to black frames; erases the modified black frames; enlarges the selected images at a magnification which can be arbitrarily set; and prints them out. The entire enlarged and projected image without any missing parts is included in the display area of the screen without making the screen too large. If plural images are contained in the display area of the read image, or if part of an image is outside of the display area, it is possible to output only the required images by extracting them and erasing unnecessary images together with the black frames. Moreover, paper can be efficiently utilized by arbitrarily changing the print magnification.

Abstract: A system for detecting focusing conditions of an image incident upon an image sensor. According to a first aspect of this invention, the system is characterized by the signal processing sequence of (a) reading out projected image information incident on the image sensor within the accumulation time period to put out time series output signals for a reading-out period, (b) filtering the time series output signals to obtain high frequency wave component, (c) subjecting the high frequency wave components to half-wave rectification, (d) integrating the half-wave rectified signals after a predetermined delay from the time when the effective signals begin to be put out and (e) utilizing the thus obtained integrated value as a contrast signal. According to a second aspect, the system is characterized by the (c') subjecting the high frequency wave components to rectification and (d') integrating the rectified signals for a pre-set time duration within the reading-out period.

Abstract: A reading out circuit for a series of linear image sensors having end light elements masked and being arranged in a staggered line. The data is written in parallel into a series of multi-location storage elements, beginning with the masked light element being stored in a central location. The storing is then wrapped around so that the masked value is overwritten.