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Class 358/3.27 - Enhancement control in image reproduction (e.g., smoothing or sharpening edges)


Subclass of Class 358 - Facsimile and static presentation processing
Definition: Subject matter wherein image data or print is filtered
No. of patents: 401
Last issue date: 04/23/2013


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NumberTitleIssue Date
7733536Method and apparatus for adjusting contrast of image
An apparatus for processing an input image including M image units is provided. Each of the M image units respectively includes N pixels. Each of the pixels respectively has an original gray scale. The apparatus includes a converting module, a gain generating module...
06/08/2010
7710609Page edge correction systems and methods
Method and system embodiments herein add at least one trap area between abutting objects on an image to be printed by a printing engine. This trap area includes a central region between two outer regions. The method/system establishes a target toner concentration fo...
05/04/2010
7697169Laser print apparatus with toner explosion compensation
A printing apparatus comprises a processor comprising registers, and a memory configured to store image data. The processor is configured to load portions of the image data into the registers and perform toner explosion compensation on the portions of the image data...
04/13/2010
7672019Enhancing resolution of a color signal using a monochrome signal
An image scanning apparatus includes three color line sensors for outputting red, green, and blue color signals, a monochrome line sensor for outputting a monochrome signal having a higher resolution than the color signals, and a resolution-enhancement processor. Th...
03/02/2010
7636180Methods and apparatus for smoothing text outlines
Methods and apparatus are provided to smooth a jagged outline of a reconstructed text generated through any of a variety of systems, such as, for example, an image scanner. Given the reconstructed text with a jagged outline, the methods smooth the outline of the tex...
12/22/2009
7616349Font sharpening for image output device
A method of rendering text in an image forming device comprises providing a user interface to receive a user-defined font sharpening threshold; receiving the user-defined font sharpening threshold entered by user via the user interface, selecting a halftone screen f...
11/10/2009
7580158Image processing apparatus, method and program
An image analysis unit analyzes an image on which AE processing has been performed and obtains a coefficient for obtaining a gradient of a compression table for compressing a dynamic range of the image. A compression table creation unit creates a compression table. ...
08/25/2009
7576894Device and method for sharpening image signal
A device for sharpening an image signal for receiving an image signal input, detecting and sharpening the object edge of the image signal input by using a detection period, and outputting an image signal output is provided. The image signal sharpening device determi...
08/18/2009
7564592Color image edge enhancement method
A color image edge enhancement method having the following steps: First, perform the halftone processing of a color image to produce a halftone image. Next, compare the dotting pattern of an edge pixel to be enhanced and the pixels in its perimeter in the halftone i...
07/21/2009
7557963Label aided copy enhancement
Regions within a scanned document are labeled according to content. These labeled regions allow for particular enhancement and sharpening methods to be applied. The labeled regions may be further leveraged in subsequent rendering of the scanned document on a printer...
07/07/2009
7542173Image processing device and image processing program causing computer to execute image processing
The invention is an image processing program to generate image data expanded into pixels of an image output device. The image processing procedure includes a procedure to generate second image data expanded into the pixels of the image output device by enlarging fir...
06/02/2009
7542174Image processing method for reducing jaggy effect
An image processing method for reducing jaggy effect, which is applied in an image output device, is provided. Firstly, a continuous tone image is generated, and continuous tone pixels are defined according to a first addressing space. Then, a halftone image is gene...
06/02/2009
7522314Image sharpening
According to one aspect, there is provided a method of determining if pixel level values of a digital picture image can benefit from an adjustment in levels to enhance the edge appearance of the image. The method involves: (1) locating edges within the image; (2) de...
04/21/2009
7515306Document display method and apparatus
A document display method includes a determination step of determining, in a case that a display magnification of document data to be displayed is reduced, whether or not the display magnification of the document data is equal to or greater than a predetermined disp...
04/07/2009
7505178Semantic classification and enhancement processing of images for printing applications
A printing system enables the printing of enhanced documents using a semantic classification scheme. A printing system receives an image to be printed. The system classifies the image according to the semantic classification scheme and, based on this classification,...
03/17/2009
7502144Method of preparing bit map
A method of generating a second bit map, improved in first-direction resolution, from a first bit map having a plurality of image-forming pixels arranged two-dimensionally, the method comprising a first detection step of detecting first and second edges appearing in...
03/10/2009
7502145Systems and methods for improved line edge quality
Systems and methods for improving image quality of image data to be rendered may be provided using multiple mask MRC files. Such a method may involve processing a first binary bit map of image data to generate a processed binary bit map, assigning an edge tag to at ...
03/10/2009
7492486Systems and methods for adaptive dynamic range adjustment for images
A method is described to match an original binary image with the dynamic range of a desired target document. The original binary image is restored first to contone and a histogram of the contone image is processed to generate a Tone Reproduction Curve (TRC) for the ...
02/17/2009
7474444Image-processing device capable of printing oblique lines
The present invention provides for an image-processing device capable of printing oblique lines with an angle of approximately 45 degrees and constant width at any time to obtain a printed image of superior quality. The line-work path information whose coordinate po...
01/06/2009
7437013Directional spatial video noise reduction
A method of reducing spatial noise in an image. Low-pass (smoothing) filters are calculated simultaneously from three successive image rows. Three blocks (m1, m2, m3) are associated with the three successive image rows, and the blocks are proces...
10/14/2008
7433535Enhancing text-like edges in digital images
Systems and methods of enhancing text-like edges in digital images are described. In one aspect, pixels in a block of image pixels are segmented into first and second pixel classes. The pixel block is edge enhanced in response to a determination that the pixel block...
10/07/2008
7433079Image processing apparatus and method
Image correction requires experience, and an image cannot be desirably corrected by an inexperienced user. Automatic image correction is done based on the analysis result of a histogram or the like. More appropriate image correction can be applied in consideration o...
10/07/2008
7433086Edge detection and correcting system and method
An imaging system for correcting a bias in the location edges in an image is provided. The imaging system comprises an image processor configured to detect edges in an image of a given substructure, characterize a blurring factor in the image and correct a bias in t...
10/07/2008
7426061Color image processing device and color image processing method
A color image processing device includes an input unit, an adjusting amount storage unit, a first conversion unit, a second conversion unit and an adjusting unit. The input unit inputs an adjustment substitute value to be selected for a color adjustment. The adjusti...
09/16/2008
7424170Automated statistical self-calibrating detection and removal of blemishes in digital images based on determining probabilities based on image analysis of single images
A method of automatically correcting dust artifact within images acquired by a system including a digital camera includes determining probabilities of dust artifact regions corresponding to pixels within a digitally-acquired image based at least in part on a pixel a...
09/09/2008
7423781Image processor and image processing method for image enhancement using edge detection
A filtering processing unit of an image processor includes a component extraction unit, a character edge quantity calculation unit, and a correction unit corresponding to each of a plurality of frequency bands and direction components, and an adder. The component ex...
09/09/2008
7420712Systems and methods that alter electronic data based on availability of time
A multifunctional device that processes electronic data includes a processor that processes the electronic data, a memory that stores the electronic data, an alteration circuit that alters the structure of the electronic data and a controller that determines whether...
09/02/2008
7421146Apparatus and method of processing shoot artifacts of image signals
An apparatus and method of processing shoot artifacts of an image signal includes a maximum gradient value calculation part to set a window of a predetermined size based on a current pixel of an input image signal and to calculate a maximum gradient value based on v...
09/02/2008
7412108Image enhancement employing partial template matching
A method of image-resolution enhancement employing partial-template matching, including storing at least a portion of an image, and selecting from the image a window comprising a plurality of adjacent line segments having pixels, the window including a target pixel....
08/12/2008
7408672Image processing apparatus, image forming apparatus and image forming method
When a print key on a console panel is depressed, a main CPU confirms enlargement/reduction rate information input via the console panel, and then, performs line thinning by setting a line thinning parameter according to the same magnification, an enlargement rate o...
08/05/2008
7403310Image processing apparatus and method
An edge amount detector detects an edge amount from RGB signals, and a filter processor synthesizes an output for edge enhancement with an output for smoothing at a proportion based on the detected edge amount. Another edge amount detector detects an edge amount of ...
07/22/2008
7400777Preprocessing for information pattern analysis
Pre-processing techniques for processing an image to improve the distinctiveness of an information pattern captured in the image before the information pattern is analyzed in a decoding process. The brightness of an image first is normalized by dividing the image in...
07/15/2008
7397581TRC smoothing algorithm to improve image contours in 1D color controls
Printing occurs when a marking engine deposits ink on a substrate to produce a pattern. The printed pattern can differ from the desired pattern when the marking engine is out of adjustment, the substrate and ink do not interact optimally, or for other reasons. A ton...
07/08/2008
7397969Red eye compensation method, image processing apparatus and method for implementing the red eye compensation method, as well as printing method and printer
The red eye compensation method and the image processing apparatus are used to read out image data for outputting or corresponding original image data from among previously stored image data, subject the image data to red eye compensation and regenerates the image d...
07/08/2008
7391536Method for smooth trapping suppression of small graphical objects using color interpolation
A method for smooth trapping of a small graphical object, includes receiving from a trap generator the location of a trap pixel in a small object that should be changed in color; determining the width of the small object containing the trap pixel; comparing the widt...
06/24/2008
7388686Image stitching for a multi-head printer
Techniques are disclosed for stitching images printed by a multi-head printer in a manner that is relatively insensitive to misregistration of the image segments. When a pair of overlapping print heads print a pair of adjacent image segments which meet in a stitchin...
06/17/2008
7386184Electronic camera
An electronic camera of the present invention includes an image pickup device, a positional data generating section, a memory, and an image processing section. The image pickup device includes a light-receiving plane photoelectrically converting a subject image. On ...
06/10/2008
7382494Method for tag plane growth and contraction for improving object edge rendering
A method of improving edge rendering of objects includes dilation (or contraction) of an object's tag plane by one or more pixels into the surrounding region, with the adjacent tag region having a corresponding contraction (or dilation). The objects of interest (e.g...
06/03/2008
7379619System and method for two-dimensional keystone correction for aerial imaging
A digital keystone correction process locates image points in a corrected image from image points in a distorted image that was produced by misalignment of the axis of a sensor such as a camera. The correction process locates corrected image points by constructing i...
05/27/2008
7379213Output image adjustment of image data
The sharpness of image data is adjusted using image data generated by an image generating device and image generating information that is associated with the image data and includes at least aperture information and operating mode information pertaining to the image...
05/27/2008
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