摘要:
An edge vector extraction unit (122) extracts edge vectors from an input image, and a variable-magnification processing unit (123) performs smoothing/variable-magnification processing of the edge vectors. A vertex point adjustment unit (100) selects each of vertex points constituting an edge vector loop as a vertex point of interest, discriminates the directions of two vertex vectors, which sandwich the edge point of interest, and adjusts the coordinate position of the vertex point of interest sandwiched between the two edge vectors having a predetermined combination on the basis of the combination of the directions, thereby suppressing a deformation of an output image, which may be caused by the variable-magnification processing.
摘要:
The contour vectors of an image are stored in a small storage capacity, and are enlarged/reduced in correspondence with a desired variable-magnification factor to be faithful to an input image. For this purpose, when a binary image is input from a binary image input unit (11), a contour vector extraction unit extracts contour vectors, and detects the positions of isolated points. The contour vectors are enlarged/reduced by a vector variable-magnification/smoothing unit (13), and a binary image is reproduced by a binary image reproduction unit (15). On the other hand, each of the isolated points is subjected to variable-magnification processing by an isolated point variable-magnification processing unit (14), so that its position is converted into a position corresponding to the variable-magnification factor, and points corresponding in number to the variable-magnification factor form the isolated point. Thus, the storage capacity of the isolated points can be reduced, and the isolated points are subjected to variable-magnification processing at an appropriate variable-magnification factor corresponding to the desired variable-magnification factor.
摘要:
In variably magnifying and outputting an image, proper variable magnification processing is performed with respect to a character/line draw component and a pseudo-halftone component, respectively. A binary image acquired by a binary image acquiring unit is supplied to an image area separating unit, in which the binary image is separated into a character/line draw area and a pseudo-halftone area. An image in the character/line draw area is supplied to an outline variable magnification unit, which performs extraction of outline vector data, smoothing processing thereof, and reproduction processing of a binary image. An image in the pseudo-halftone area is supplied to a pseudo-halftone image variable magnification unit, in which the image is subjected to multivalue conversion processing in units of pixels, variable magnification processing by thinning or interpolation of pixels, and binarization again. A synthesizing unit synthesizes binary images output from these variable magnification unit and outputs the synthesized image to a binary image output unit.
摘要:
Contour vectors are extracted by an outline extraction unit from a binary image acquired by a binary image acquisition unit. An outline smoothing/zooming unit smoothes and zooms the image expressed by the contour vectors. The zoom ratio at this time is controlled by a zoom controller in such a manner that a zoom ratio obtained by combining this zoom ratio with the zoom ratio of a second zooming unit will become a desired zoom ratio. The smoothed and zoomed image data is converted to a binary image by a binary image reproducing unit. This binary image is zoomed by the second zooming unit. The zoom ratio here preferably is selected in such a manner that the zoom ratio of the smoothing zoom unit becomes unity or greater. As a result, zooming of image data expressed by vectors is no longer limited to enlargement, images can be reduced in size while still remaining faithful to the original image, and it is unnecessary to process extra data.
摘要:
In magnifying a multivalued image, binary images are generated by using the respective density levels of the multivalued image as thresholds. The contour of each binary image is equivalent to an equidensity curve corresponding to each density gradient of the original multivalued image. Outline vectors of each binary image are extracted and magnified/smoothed. The contour of each binary image represents an equidensity curve corresponding to each density gradient of the magnified multivalued image. In a binary image area corresponding to a black pixel of each binary image, a pixel having a density equal to the threshold used to generate the binary image is written. This processing is sequentially performed for all the binary images from a low-density binary image to a high-density binary image to generate a multivalued image. The objected multivalued image is subjected to density gradient smoothing processing. As a result, a magnified multivalued image is obtained.
摘要:
A digital color image to be processed is inputted at a color image input step, image segments are extracted from the input color image at an image-segment extraction step, and data of the extracted image segments is created. Next, image-segment components in each extracted image segment are discriminated at an image-segment discrimination step, and each extracted image segment is subjected to zoom processing, which conforms to the discriminated image-segment component, at an adaptive zoom step, thereby creating a zoomed image of the input image. The zoomed image that has been created is displayed, outputted as a hard copy or delivered to a transmission line at a color image output step. Accordingly, a color image in which image segments having different characteristics are mixed is efficiently processed.
摘要:
In one aspect, an image processing apparatus inputs an input image signal and detecting whether or not there is a frame change in an image by comparing the input image signal with a reference image signal. A memory is used for updating the reference image signal by storing the input image signal as the reference image signal in units of frames when there is a frame change. In another aspect, the image processing apparatus extracts change components between images by comparing the input image signal with the reference image signal, the reference image signal being an earlier input signal when a most recent prior change component was extracted. The extracted change components are corrected by detecting and removing an erroneously extracted change component, and an image change is discriminated in the input image signal on the basis of the change components as corrected.
摘要:
A digital color image to be processed is inputted at a color image input step, image segments are extracted from the input color image at an image-segment extraction step, and the data of the extracted image segments is created. Next, image-segment components in each extracted image segment are discriminated at an image-segment discrimination step, and each extracted image segment is subjected to zoom processing, which conforms to the discriminated image-segment component, at an adaptive zoom step, thereby creating a zoomed image of the input image. The zoomed image that has been created is displayed, outputted as a hard copy or delivered to a transmission line at a color image output step. Accordingly, a color image in which image segments having different characteristics are mixed can be subjected to excellent processing.
摘要:
An exposure apparatus includes a controller configured to calculate a position of an alignment mark detected by a detector, to approximate a deformation of a substrate by using an approximation equation, to calculate a correction amount of each of the plurality of shots, and to control driving of a stage in exposing each shot based on a correction amount that is calculated. The approximation equation is defined as a sum of a first term representative of a deformation of the entire substrate, and at least one of a second term representative of a distortion of a shot arrangement and a third term representative of a shot shape.
摘要:
An exposure apparatus includes a controller configured to calculate a position of an alignment mark detected by a detector, to approximate a deformation of a substrate by using an approximation equation, to calculate a correction amount of each of the plurality of shots, and to control driving of a stage in exposing each shot based on a correction amount that is calculated. The approximation equation is defined as a sum of a first term representative of a deformation of the entire substrate, and at least one of a second term representative of a distortion of a shot arrangement and a third term representative of a shot shape.