Matches 1 - 23 out of 23


Match Document Document Title
US20060087702 Image capturing apparatus  
An image capturing apparatus having an image capturing portion that captures an image of an object, a memory that has an area for storing reference gain information representative of a reference...
US20060098240 Shading compensation device, shading compensation value calculation device and imaging device  
A shading compensation device which compensates for shading which differs for respective colors. A pixel counter counts co-ordinate positions of image data which is supplied from a black level...
US20070165257 Image processing method, image processing apparatus, image forming apparatus and recording medium  
An image processing apparatus comprising reading means for reading document images; extracting means for extracting the characteristic amounts representing the characteristics of color information...
US20050179954 Image processing apparatus resolving dust problem  
An image processing apparatus includes a reading device stationed at a reading position. The reading device includes a light source that emits a reading light to an original document passing...
US20140218772 DOCUMENT READING APPARATUS  
An image reading apparatus corrects a deviation of a reading position of a document to accurately correct a luminance intensity distribution variation. Light is radiated to a shading plate (102)...
US20070223064 Image reading apparatus, image processing method and computer-readable recording medium  
Disclosed is an image reading apparatus, which comprises: (1) an image reading section which scans a calibration sheet for calibration and reads image information thereof; and (2) a correction...
US20050111055 Apparatus and method of image sharpness enhancement  
An apparatus and method of image sharpness enhancement. The apparatus includes a slope value calculator to set in an input video signal a window of a predetermined size with reference to a current...
US20050275904 Image capturing apparatus and program  
Shading occurring in an image captured by an image sensor has a characteristic in that the light amount decrease ratio is asymmetrical with respect to the center of the image and varies according...
US20080055668 Image reading apparatus, image reading method, and program  
An image reading apparatus includes an image reading sensor reading an image from a document, a light source turned on at a time when the image is read from the document by the image reading...
US20060285174 Shading profile value correction method and image scanning device  
A shading profile value correction method and an image scanning device are disclosed. The shading profile value correction method comprises generating and storing reference shading profile values...
US20050259284 Image processing apparatus  
An image processing apparatus for reading out at least one image data stored in a storing means and displaying the same on a screen, and applying a given correction to image data of said at least...
US20080100879 SCANNING DEVICE AND SHADING CORRECTION METHOD THEREOF  
A scanning device includes a display part, a flat bed on which a manuscript is loaded, a white reference sheet provided at one side of the flat bed, a scanning head to divide the white reference...
US20050270589 Image scanner  
A method of correcting information scanned by an image scanner includes scanning a first number of positions of a first portion of a correction member having different reflectances to obtain first...
US20080278771 IMAGE READING APPARATUS  
Disclosed in an image reading apparatus including a reading unit to obtain an image data by irradiating a document with a light and reading an image of the document, a paper thickness detection...
US20090015879 IMAGE PICKUP DEVICE, SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD  
An imaging device for reducing fixed pattern noise caused by dark current or the like. The imaging device (10) includes a solid state imaging device (11) and a signal processor (12). The solid...
US20160021270 IMAGE READING DEVICE  
According to one embodiment, an image reading device includes: an open-close detection unit which detects opening and closing of a cover unit; a document presence-absence detection unit which...
US20100245936 IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM  
An image processing apparatus that performs shading correction processing with the use of white reference data is provided. The image processing apparatus includes a source data acquisition unit...
US20070035784 Image processing method and apparatus  
The present invention discloses an image processing method for correcting shading based on the approximated surface of a brightness distribution of an image acquired with a digital camera. In the...
US20100091339 IMAGE SCANNING APPARATUS AND SHADING CORRECTING METHOD THEREOF  
An image scanning apparatus includes a first scanning unit to scan a first side of a conveyed document and detect a white area, a direction change unit to re-convey the conveyed document to a...
US20080218811 KEYSTONE CORRECTING METHOD AND DISPLAY APPARATUS  
Disclosed are a keystone correction method and a display apparatus using the same. The keystone correction method can include receiving a plurality of pixel data included in an image signal of a...
US20090195840 METHOD OF SHADING CORRECTION IN IMAGE READER AND IMAGE PROCESSING APPARATUS  
The invention includes a brightness reading position control section for reading reference data of a reference plate a plurality of times for different locations by an image reader, a reading data...
US20070211270 PRINTER AND PRINT SYSTEM  
A printer for executing printing on the basis of tone data representing a tone of one of a plurality of colors of ink, includes an input unit that inputs first tone data for a color represented by...
US20060072167 Method of image signal modulation based on light source luminosity  
An image signal modulation method is applicable to an optical scanner to obtain compensated image when the light source is not stable during starting. It first scans a document to get...

Matches 1 - 23 out of 23