Abstract: Since a plurality of electric CAD systems (CAD) 1 generate circuit diagram data with different data structures, input interface (IF) software (SOFT) implements processing for extracting predetermined item data used in parts selection SOFT from each CAD, and processing for adding data obtained by the parts selection SOFT to each CAD. The parts selection SOFT implements selection of parts, output of slips, and the like on the basis of the predetermined item data. Output IF-SOFT converts information associated with the selected parts output from the parts selection SOFT into a different data format used in the subsequent process, and outputs the converted information.

Abstract: An image processing apparatus includes an input device for image data, a discriminating device for discriminating a type of an image represented by the image data, a setting device for setting a discrimination standard of the discriminating device, and a display for displaying a condition of the setting device.

Abstract: An image forming apparatus arranged to synthesize a plurality of images having different numbers of steps of tone representation, and thereafter form an image at different degrees of resolution corresponding to the respective numbers of steps of tone representation. According to one representative embodiment, an image forming apparatus inputs first and second image information to be synthesized with each other, the number of tone-levels of the second image information being less than the number of such levels of the first information. An image synthesizer, which is capable of changing an image forming resolution, forms a synthesized image from the first and second image information, and a controller controls the image forming resolution of the image synthesizer such that the first image information is formed at a first resolution and the second information is formed at a second resolution higher than the first resolution.

Abstract: An image processing apparatus connected with an image forming apparatus which forms an image at different degrees of resolution inputs image data from an external source and generates a control signal to control the degree of resolution at which the image forming apparatus forms the image from the image data. The control signal is a signal to control a driving power of the image forming apparatus. The image data input by the input means is output to the image forming apparatus, along with the control signal.

Abstract: An image processing apparatus includes a circuit for inputting a plurality of color component signals of a subtractive color system, a circuit for detecting a minimum value signal of the color component signals input by the input means, a circuit for emphasizing a high-frequency component of the minimum value signal detected by the detection means, and a circuit for discriminating a feature of an image in accordance with the minimum value signal whose high-frequency component is emphasized by the emphasizing means.

Abstract: An image forming apparatus responsive to environmental conditions has an image forming device for forming a dot image on a recording member. The image forming device includes exposure apparatus for exposing the recording member. A detector detects a humidity condition of the apparatus, and control circuitry regulates the amount of light of the exposure apparatus in accordance with an output of the detector. The control circuitry is adapted, when the humidity detected by the detector is lower than a predetermined value, to select an amount of light of the exposure apparatus larger than that in the case where the humidity is higher than the predetermined value.

Abstract: According to this invention, an image processing apparatus separates a color original into a plurality of color signal components and sequentially reads the color signal components by read means so as to sequentially form images corresponding to the color signal components on a photosensitive body. In this apparatus, at least two color signal components of a color image to be synthesized with the color original are simultaneously read and are stored in an image memory by the read means, and upon image synthesis, the color signal components are read out from the image memory in synchronism with color signal components read by the read means.

Abstract: This invention relates to an image forming apparatus for forming an image using a pulse modulated signal based on an input image signal. A circuit for pulse-modulating an image signal and a circuit for driving a recording element are integrally formed on a single circuit board, or a circuit means for isolating a signal level of another circuit, e.g., a circuit for digitally processing an image signal or a circuit for generating a control signal from that of the pulse modulation circuit is arranged, so that a pulse modulation signal to be applied to the recording element is stabilized, and a high-frequency operation is allowed.

Abstract: In an image forming apparatus for forming an ordinary copy or a tonality image for an original image for a printing master, original image data is divided into a predetermined area, and pixel density within the area is subjected to a density conversion in accordance with screen half-toning information which will increase density information toward the approximate center of these pixels, by way of example. The original image data or the density-converted image data is converted into a binary-coded signal conforming to the density, and an output image is formed in accordance therewith. Preferably, a specific mark is supperimposed on the output image.

Abstract: An image processing apparatus is provided with an input circuit for inputting a plurality of multilevel signals, each corresponding to a respective one of a plurality of pixels. An emphasizing circuit emphasizes a high frequency component of one of the multilevel image signals by using the multilevel image signals of a plurality of pixels and outputs the emphasized multilevel image signal. A discriminator discriminates a dot area of an image represented by the one multilevel signal input by the input circuit, by using the multilevel image signals of the plurality of pixels whose high frequency component is emphasized by the emphasizing circuit. The number of pixels used by the discriminator is larger than the number of pixels used by the emphasizing circuit.

Abstract: An image processing apparatus includes an input unit for inputting a plurality of color component signals of a primary color system, a detection unit for detecting a value according to a minimum value signal of the color component signals input by the input unit, and a discrimination unit for discriminating a dot area of an image on the basis of the value according to the minimum value signal detected by the detection unit.

Abstract: An image processing apparatus of this invention includes a unit for calculating an average value in a first block pixel area including an objective pixel, a unit for calculating an average value in a second block pixel area including the objective pixel, and a binarization unit for determining, as a binary output of the objective pixel, a binarization result obtained by binarizing the average value in the second block pixel area by the average value in the first block pixel area as a threshold value.

Abstract: In an image forming apparatus for forming an ordinary copy or a tonality image for an original image for a printing press, original image data is divided into data within a predetermined area and that outside the area, and pixel density within the area is subjected to a density conversion in accordance with screen half-toning information which will increase density information toward the approximate center of these pixels, by way of example. The original image data or the density-converted image data is converted into a binary-coded signal conforming to the density, and an output image is formed in accordance therewith. Preferably, plural types of non-linear correction tables are provided and a tone-conversion is performed selecting an appropriate correction table for each pixel, or for each line, of the density-converted image data.

Abstract: A color image reading apparatus having a color sensor with plural sensor groups, the color sensor for separating an objective image into plural color components and for converting the plural color components into plural color component signals, and a shading corrector for performing shading correction for the plural color component signals. The shading corrector causes the plural sensor groups to substantially simultaneously read a reference plate and automatically corrects a shading correction state for each of the plural color component signals in accordance with data obtained from the plural sensor groups.

Abstract: An image processing apparatus includes a color reader for reading image signals, a multi-output memory for outputting the image signals to a plurality of color printers, a control unit for discriminating operating states of the color printers, and a sync control for performing output control of the image signals supplied to the color printers.

Abstract: An image forming apparatus responsive to environmental conditions has an image forming device for forming a dot image on a recording member. The image forming device includes exposure apparatus for exposing the recording member. A detector detects a humidity condition of the apparatus, and control circuitry regulates the amount of light of the exposure apparatus in accordance with an output of the detector. The control circuitry is adapted, when the humidity detected by the detector is lower than a predetermined value, to select an amount of light of the exposure apparatus larger than that in the case where the humidity is higher than the predetermined value.

Abstract: A halftone image recording apparatus includes means for recording an image on a recording medium, inputting an image signal representative of an image which includes a plurality of density levels, generating a plurality of pulsed periodic signals having different widths of one period of the image signal, selecting at least one periodic signal with a preselected pulse width among a plurality of the periodic signals, combining the selected periodic signal with the image signal, and applying the combined signal to the recording means.

Abstract: An image processing apparatus separates a color original into a plurality of color signal components and sequentially reads the color signal components so as to sequentially form images corresponding to the color signal components on a photosensitive body. At least two color signal components of a color image to be synthesized with the color original are simultaneously read and are stored in an image memory, and upon image synthesis, the color signal components are read out from the image memory in synchronism with the color signal components.

Abstract: An image processing apparatus receives color data and includes a masking processing circuit for modifying the colors represented by the color data by processing each of the different color data received. The colors are modified according to other color data associated with each of the colors represented by the color data. The masking processing circuit includes a first memory for storing data representing each color and a second memory for storing data from the data derived after masking processing the data stored in the first memory. The color data and the other color data are used as addresses in the first and second memory. The number of bits of each color data used as an address for each respective color is larger than the number of bits for each of the other color data received at that portion of the memory.

Abstract: An image processing system is specifically designed to process digital image data of different types, for example, by processing digital image data to print a monochromatic image with a color image printer, and includes color and monochromatic image data transmitters for transmitting digital image data such as color image data and monochromatic image data along with command data relating to an image reproduction mode. An electronic circuit is used to discriminate command data transmitted. The digital image data is processed in accordance with the discriminated command data. The command data is transmitted through a single channel to a processing apparatus sequentially before the transmission of the digital image data. In another aspect, transmitted digital color image data may be converted into digital monochromatic image data on the basis of a relative luminosity correction coefficient.