Abstract: A method of scanning and recording images is so designed that, when plural originals arranged on an original cylinder are recorded onto a film held on a recording cylinder, a device or devices of a color scanner can be controlled by data previously written in predetermined addresses of respective memories in both the horizontal directions and the vertical directions, based on various conditions such as color correction, sharpness emphasis and so on. The method comprises: reading out data in order from a memory depending on positional informations of reproduced images to be recorded, said data being previously written in said memory based in desired conditions; and controlling a device or devices incorporated in the apparatus, based on the read-out data.

Abstract: A method for varying colors of a picture image, displayed in a color display, for reproducing a color printed matter, in which density signals of cyan, magenta, yellow and black, picked up from an original picture are fed to a color display to display a color picture image corresponding to the color printed matter to be obtained is disclosed. Color ink signals of cyan, magenta and yellow for recording a color printed matter are converted into color separation density signals of red, green and blue by using the first table memories, and then the converted color separation density signals are added one by one. Then, correction values for printing the color inks one above another, read out of the second table memories depending on the color ink signals, are added to the added color separation density signals. A correction value for printing the black ink upon the other color inks, read out of the third table memory depending on the black and the color ink signals, may be added to thus the obtained signal.

Abstract: A setup condition recorder for a color scanner for reproducing a reproduction picture, wherein an original picture to be reproduced, secured to a picture mount means, is scanned by a pickup head to obtain a picture signal, and wherein an operational unit determines setup conditions for the color scanner from the picture signal, and the setup conditions are recorded on a recording medium by a recording unit.

Abstract: A method for controlling exposure light beams for use in a picture reproducing machine such as a color scanner and a color facsimile, wherein a light beam is supplied to an acoustooptical deflector and is deflected thereby to obtain diffraction light beams which are incident to fixed light paths and are used for exposing a recording film, and wherein the diffraction light beams are controlled by varying a frequency of a supersonic wave supplied to the acoustooptical deflector so that each diffraction light beam may be or may not be incident to the respective light path.

Abstract: A color control simulator for a picture reproducing machine such as a color scanner and a color facsimile, wherein an input means such as a pickup head scans an original picture to obtain color separation picture signals which index a memory table stored in a memory to output first color-corrected color separation picture signals, wherein the first color-corrected color separation picture signals of the table are replaced with second color-corrected color separation picture signals which are output by a color control means such as a color controller and a key board, and wherein a display means displays colors corresponding to the color-corrected color separation picture signals fed from the memory. A computer controls the input means, the memory, the color control means, and the display means.

Abstract: A method for automatically determining the color control conditions such as a highlight point, shadow point, a gradation control, color correction, and so forth, for a picture reproduction for use in a picture reproducing machine such as a color scanner and a color facsimile, wherein an original picture is scanned photoelectrically to pick up color separation picture signal data of the primary colors. The signal data is classified into groups to obtain a distribution condition, and according to the distribution condition obtained the color control conditions are determined.

Abstract: A method for pre-processing a picture signal prior to an operational circuit of a picture reproducing machine such as a color scanner and a color facsimile, wherein an original picture is scanned photoelectrically to obtain the picture signal, wherein first conversion characteristics data stored in a memory are read out by addressing addresses of the memory by the picture signal, and then are changed by second conversion characteristics data depending on a desired reproducible density range of the original picture.

Abstract: A digital masking operation method and machine used in a color control system of a picture reproducing machine such as a color scanner, a color facsimile, or the like, wherein n sets of memory tables are indexed by means of color separation data of primary colors, and wherein data from each memory table is utilized to output a partial sum of predetermined relation to the input according to a conversion table stored therein and then the output data of the primary colors are added for each of the primary colors, in an adder thereby obtaining masking data for each of the primary colors.

Abstract: A method for controlling writing timings of picture signals to be stored in a memory, for use in a picture reproducing machine wherein the picture signals picked up by picture scanning means are stored in the memory and then the picture signals are read out of the memory, and wherein reproduction pictures are recorded on a recording film by a reproduction recording means by using the picture signals read out. The picture signals are latched consecutively into latch circuits arranged before the memory by a first clock pulse generated by the picture scanning means, and then the picture signals read out of the latch circuits in the latching order by a second clock pulse generated by the reproduction recording means are written into the memory.

Abstract: The method allows the isolation of a certain portion of an original color picture having a color which corresponds to a reference color in a photoelectrical picture reproducing process. The colors of the original picture as well as the reference color are identified by using a color plane which is divided up into incremental areas. Since the computation process is simplified, the color isolation process can be accomplished at the same time as the original picture is photoelectrically scanned.

Abstract: A method for compressing picture data, wherein an original picture is scanned photoelectrically to obtain analog picture signals which are converted in an analog-digital converter into picture data to be transmitted or stored in a memory, wherein each of a matrix of picture data having addresses is compared with an adjacent picture data in horizontal, vertical, right upper diagonal and left upper diagonal directions to obtain comparison results, and wherein either each picture data or its adjacent picture data is skipped according to the comparison results when the two picture data have the same value, to obtain compressed data consisting of representative data which cannot be skipped.

Abstract: A method is disclosed, according to which a plurality of original pictures are reproduced on a sheet of photosensitive material with a desired lay-out plan and each at a desired magnification factor. Although the method is suitable for a real time operation, any local irregularity of the picture signal at the pick-up end is absorbed by a writing control circuit before the signals are stored in a memory device in which the picture signals are arranged so as to be read out according to the desired lay-out plan. In addition to the utilization of the memory device, the motion of the pick-up heads is controlled for obtaining the desired magnification factors and for compensating the irregularities in their motion arising from their driving means.

Abstract: A method is described for reproducing pictures on a photosensitive material from original pictures depending on the desired layout. A plurality of original pictures are scanned in parallel by means of picture scanning means to obtain rows of picture signals. The picture signals obtained are aligned in series depending on the desired layout, and the picture signals are used to record aligned reproduction pictures on the photosensitive material in the desired layout positions by means of a picture recording means.

Abstract: A digital color control method and machine used in a picture reproducing machine, such as a color scanner, a color facsimile, or the like, wherein color separation picture data of primary colors are separated into color component data and a gray component data which is further divided into gray component separation data of primary colors by using memory tables, then the color and the gray components data are color-corrected independently by using memory tables to obtain color-corrected color separation data. Then, the gray component separation data are added to the color-corrected color separation data, thereby obtaining color-controlled color separation recording data for reproducing color separation reproduction pictures.

Abstract: A method for controlling positions of reproduction pictures on a recording film mounted to a recording cylinder in the direction of the cylinder's axis, for use in a picture reproducing machine, wherein distances of pickup and recording heads away from a scanning start point of each original picture and a recording start point of each reproduction picture are detected on the basis of a standard position through which the recording head is moved at a fixed speed, and wherein the moving speed of the pickup head is controlled according to the distances detected and each reproduction scale so that the scanning start point of the original picture and the recording start point of the reproduction picture may be scanned at substantially the same time by the pickup and the recording heads.

Abstract: A sharpness emphasizing method of a reproduction picture for use in a picture reproducing machine such as a color scanner or a color facsimile, wherein an original picture is scanned to pick up a picture signal which is separated into color separation picture element signals of primary colors, and wherein a reproduction picture is reproduced by using the color separation picture element signal, in which a main picture element signal whose sharpness is to be emphasized, and supplemental picture element signals positioned around the main picture element signal are picked up, in which the supplemental picture element signals picked up are weighted with factors in such a manner that the supplemental picture element signals positioned in the same distance away from the main picture element signal may be weighted with the same factor, and the supplemental picture element signals weighted are averaged to obtain a mean value signal, and in which the main picture element signal is emphasized according to the mean valu

Abstract: A method for carrying out a color correction in a digital manner in a picture reproducing machine such as a color scanner, a color facsimile, or the like, which is capable of saving a large volume of capacity of a memory, wherein a resultant value obtained from a combination of color separation signals which are obtained by scanning photoelectrically a color original picture, is represented in a plane coordinate system, and wherein the coordinates of the resultant value are transformed in order to correct hue and saturation by operating the color separation signals together with factors predetermined, thereby obtaining a combination of color-corrected color separation signals.

Abstract: A color control simulator for a picture reproducing machine, comprising an operational processor including a program having the same operational functions, but not the same operational circuits, as those of the picture reproducing machine, and adjusting means for adjusting color control conditions for the picture reproducing machine, which correspond to those of the picture reproducing machine. A color picture signal picked up is separated into color separation analog signals in a color separator, and then color separation digital signals, and the color separation digital signals are operated in the operational processor to obtain the color control conditions by the adjusting means. The color control conditions may be recorded in a card or a tape in output display means.

Abstract: A method of analog-digital conversion is disclosed, wherein sub-sampling of an analog signal is performed at a certain multiple n of the basic sampling rate, and wherein from n consecutively-produced values representative of the analog signal the digital signal to be output is calculated.

Abstract: A method of analog-digital conversion is disclosed, wherein sub-sampling of an analog signal is performed at a certain multiple n of the basic sampling rate, wherein a discrimination signal including extreme position signals is obtained by detecting the level difference between the analog signal and an unsharp signal, and wherein from n consecutively-produced values representative of the analog signal the digital signal to be output is obtained as being; if the extreme position signal is detected, then the consecutively-produced representative value corresponding thereto; otherwise, the average of the n consecutively-produced representative values.