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Class Information
Number: 382/272
Name: Image analysis > Image enhancement or restoration > Variable threshold, gain, or slice level > Based on a local average, mean, or median
Description: Subject matter wherein the threshold or quantization value of a particular image element depends on an average, mean or median measurement of neighboring elements, with a similar average, mean or median operation being applied to each element of the whole image.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7623141 |
Methods and systems for sub-pixel rendering with gamma adjustment |
Nov. 24, 2009 |
| 7623727 |
Image binarization apparatus, image binarization method, image pickup apparatus, image pickup method, and a computer product |
Nov. 24, 2009 |
| 7616829 |
Reducing undesirable block based image processing artifacts by DC image filtering |
Nov. 10, 2009 |
| 7609880 |
Display apparatus and its control method |
Oct. 27, 2009 |
| 7599572 |
System for manipulating noise in digital images |
Oct. 6, 2009 |
| 7586658 |
Method and apparatus for removing color noise in image signal |
Sep. 8, 2009 |
| 7529423 |
SIMD four-pixel average instruction for imaging and video applications |
May. 5, 2009 |
| 7519211 |
Factor analysis in medical imaging |
Apr. 14, 2009 |
| 7515119 |
Method and apparatus for calculating an average picture level and plasma display using the same |
Apr. 7, 2009 |
| 7508430 |
Method for locally reducing row noise |
Mar. 24, 2009 |
| 7474846 |
Method and apparatus of determining the best focus position of a lens |
Jan. 6, 2009 |
| 7463787 |
Picture editing |
Dec. 9, 2008 |
| 7453503 |
Pixel interpolation method |
Nov. 18, 2008 |
| 7454057 |
Image processing apparatus and image processing program |
Nov. 18, 2008 |
| 7450137 |
System and method for blending images |
Nov. 11, 2008 |
| 7423789 |
Contaminant particle identification and compensation with multichannel information during scanner calibration |
Sep. 9, 2008 |
| 7423633 |
Apparatus for controlling the position of a screen pointer with low sensitivity to fixed pattern noise |
Sep. 9, 2008 |
| 7385637 |
Method for determining image sensor reference image |
Jun. 10, 2008 |
| 7369276 |
Multi-level halftoning providing improved texture uniformity |
May. 6, 2008 |
| 7362882 |
Method and device for compensating for shadows in digital images |
Apr. 22, 2008 |
| 7339627 |
Method and system for automatic detection and display of aspect ratio |
Mar. 4, 2008 |
| 7295349 |
Systems and methods for compensating for print defects |
Nov. 13, 2007 |
| 7296231 |
Video structuring by probabilistic merging of video segments |
Nov. 13, 2007 |
| 7292728 |
Block quantization method for color halftoning |
Nov. 6, 2007 |
| 7289114 |
Generating and displaying spatially offset sub-frames |
Oct. 30, 2007 |
| 7268821 |
Upconversion with noise constrained diagonal enhancement |
Sep. 11, 2007 |
| 7245780 |
Group average filter algorithm for digital image processing |
Jul. 17, 2007 |
| 7242816 |
Group average filter algorithm for digital image processing |
Jul. 10, 2007 |
| 7224843 |
Apparatus for binary-coding image and method using the same |
May. 29, 2007 |
| 7221381 |
Methods and systems for sub-pixel rendering with gamma adjustment |
May. 22, 2007 |
| 7206002 |
Image processing apparatus and method that avoid generation of moire |
Apr. 17, 2007 |
| 7203376 |
Imaging apparatus and imaging method |
Apr. 10, 2007 |
| 7200264 |
White point estimation using color by convolution |
Apr. 3, 2007 |
| 7164430 |
Anti-aliasing line pixel coverage calculation using programmable shader |
Jan. 16, 2007 |
| 7146042 |
Image processing apparatus and colorimetric system conversion method |
Dec. 5, 2006 |
| 7139105 |
Image reading apparatus for optically reading an image |
Nov. 21, 2006 |
| 7133568 |
Method and apparatus for analysis of variables |
Nov. 7, 2006 |
| 7110455 |
Noise reduction pre-processor for digital video using previously generated motion vectors and adaptive spatial filtering |
Sep. 19, 2006 |
| 7106902 |
Personal authentication system and method thereof |
Sep. 12, 2006 |
| 7095888 |
Apparatus for detecting average picture level |
Aug. 22, 2006 |
| 7092018 |
Image signal processor and deficient pixel detection method |
Aug. 15, 2006 |
| RE39237 |
Interpolation method for binary image |
Aug. 15, 2006 |
| 7085429 |
Binarization device |
Aug. 1, 2006 |
| 7027637 |
Adaptive threshold determination for ball grid array component modeling |
Apr. 11, 2006 |
| 6999619 |
Processing for accurate reproduction of symbols and other high-frequency areas in a color image |
Feb. 14, 2006 |
| 6990252 |
System for manipulating noise in digital images |
Jan. 24, 2006 |
| 6961476 |
Autothresholding of noisy images |
Nov. 1, 2005 |
| 6956977 |
Methods for improving contrast based dynamic range management |
Oct. 18, 2005 |
| 6944352 |
Circuitry for determining median of image portions |
Sep. 13, 2005 |
| 6941027 |
Method of and system for automatically determining a level of light falloff in an image |
Sep. 6, 2005 |
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