Patent application number | Description | Published |
20080298704 | FACE AND SKIN SENSITIVE IMAGE ENHANCEMENT - Systems and methods of face and skin sensitive image enhancement are disclosed. In one aspect, a face map that includes for each pixel of an input image a respective face probability value indicating a degree to which the pixel corresponds to a human face is calculated. A skin map that includes for each pixel of the input image a respective skin probability value indicating a degree to which the pixel corresponds to human skin is ascertained. The input image is enhanced with an enhancement level that varies pixel-by-pixel in accordance with the respective face probability values and the respective skin probability values. In another aspect, a facial content measurement value indicating a degree to which an input image contains human face content is ascertained. A tone-correction process is tuned in accordance with the facial content measurement value. The input image is enhanced in accordance with the tuned tone-correction process. | 12-04-2008 |
20090091591 | Printing Systems And Methods For Generating Relief Images - Systems and methods for generating relief images are disclosed. In an exemplary embodiment, a printing method for generating relief images may include transferring a plurality of ink layers one on top of the other on a substrate. The method may also include transferring at least one ink pixel on the plurality of ink layers. The method may also include outputting a relief image that appears differently based on a viewing angle of an observer. | 04-09-2009 |
20090213414 | Printers and Printing - A printer control system ( | 08-27-2009 |
20100067059 | HALFTONE PRINTING WITH DIFFERENT SCREENS - A method of enabling preparing a printing system calibrated with a first halftone screen for printing with a second halftone screen. The calibration is represented by calibration data. Calibration data for the second halftone screen is produced from the existing calibration data of the first halftone screen without resorting to previous calibration data for the second halftone screen, based on correlation data which represent a first-order correlation between the halftone screens. | 03-18-2010 |
20100074639 | PRINTER, PRINTING METHOD AND PRINTER CALIBRATION METHOD - A method of calibrating an electrophotographic printer ( | 03-25-2010 |
20110103813 | Correction Method, Apparatus, Data Carrier or System for Correcting for Unintended Spatial Variation in Lightness Across a Physical Image Produced by a Xerographic Process - A correction method for correcting unintended spatial variation in lightness across a physical image produced by a xerographic process, the method comprising producing a test image using the xerographic process, measuring a difference between actual lightness and intended lightness across at least part of the test image, and varying the light source level used subsequently in the xerographic process to correct for the measured unintended difference. | 05-05-2011 |
20110205568 | Imaging Device Calibration System And Method - One or more imaging device calibration methods and systems are disclosed. According to one embodiment, a calibration system and method includes the application of one or more white colorants on a high optical density media prior to application of calibration targets. The system and method allow for calibration of the imaging device without the necessity for changing the substrate or stopping printing. | 08-25-2011 |
20120105878 | ACCURATE PRINTING OF A TARGET COLOUR - A method of accurately printing a target colour is provided. The method comprises: in a first step measuring the light spectrum ( | 05-03-2012 |
20120134546 | RED EYE DETECTION AIDED BY FACE DETECTION - A method for identifying a pair of genuine red eye artifacts in a captured image includes the steps of determining the presence of a face in the captured image, substantially encompassing the face within a shape, and determining the presence of three or more candidate red eye artifacts within the shape. The method continues with measuring the distance from an edge of the shape to each of the three or more candidate red eye artifacts and identifying, as genuine red eye artifacts, two candidate red eye artifacts of the three or more candidate red eye artifacts that are within a predetermined vertical distance from the edge of the shape. | 05-31-2012 |
20120320378 | Optical Density Sensor Calibration and Self Fixing - A method of calibrating an optical density sensor comprising calculating a first pigment solid density value of an ink solution using a current first electrical output signal value from a photodetector, a current second electrical output signal value from a photodetector, and a current lens gap value, calculating a second pigment solid density value of the ink solution using a previously measured first electrical output signal value, a previously measured second electrical output signal value, and a previously measured lens gap value, comparing the current first electrical output signal value, the current second electrical output signal value, and the current lens gap value with the previously measured first electrical output signal value, the previously measure second electrical output signal value, and the previously measured lens gap value, and comparing the first pigment solid density value with the second pigment solid density value. | 12-20-2012 |
20130330092 | PRINTING - An embodiment of this disclosure involves printing color outputs on sheets, reading the color outputs and adjusting a calibration parameter. | 12-12-2013 |
20130336666 | PRINTING - Printing by determining target color values based on first color outputs, determining current color values based on current color outputs, and calculating color compensation values to compensate for a difference between the target color values and the current color values. | 12-19-2013 |