Class / Patent application number | Description | Number of patent applications / Date published |
382237000 | Gray level to binary coding | 10 |
20080273807 | COMPRESSION OF DIGITAL IMAGES OF SCANNED DOCUMENTS - A first aspect of the invention relates to a method for creating a binary mask image from an a inputted digital image of a scanned document, comprising the steps of creating a binarized image by binarizing the inputted digital image, detecting first text regions representing light text on a dark background, and inverting the first text regions, such that the inverted first text regions are interpretable in the same way as dark text on a light background. A second aspect of the invention relates to a method for comparing in a binary image a first pixel blob with a second pixel blob to determine whether they represent matching symbols, comprising the steps of detecting a line in one blob not present in the other and/or determining if one of the blobs represents an italicized symbol where the other does not. | 11-06-2008 |
20090060360 | Method and apparatus for processing image and electronic device using the same - A method and apparatus for processing an image, and an electronic device are provided. The method comprises: picking a maximum gray level from the gray levels in the sub-pixels of each image pixel in the image to obtain a luminance map which is consisted of the maximum gray levels of the image pixels; determining an image-content lightness of the image according to the luminance map; and adjusting the gray levels in the sub-pixels of the image pixels in the image according to the image-content lightness of the image. | 03-05-2009 |
20090067733 | Byte Representation for Enhanced Image Compression - Various aspects can be implemented to enhance image compression by using a byte representation to reduce the color values and increase redundancy in the color information. In general, one aspect can be a method for enhancing compression of a digital image having a plurality of pixels, each pixel including at least one color component, the method includes obtaining an original number of bits for representing a color value associated with the at least one color component. The method also includes assigning a first reduced number of bits for representing a plurality of case attributes. The method further includes assigning a second reduced number of bits for representing a new color value, wherein the sum of the first reduced number of bits and the second reduced number of bits equals the original number of bits. Other implementations of this aspect include corresponding systems, apparatus, and computer program products. | 03-12-2009 |
20090103820 | METHOD AND DEVICE FOR ENCODING IMAGE DATA - An encoding method to encode image data comprising a sequence of blocks with a predetermined compression rate in one pass is disclosed. The blocks are divided into two sets, a first set and a second set. The blocks in the first set are encoded within the sum of an available bit length and a predetermined lending bit length. The blocks are encoded in the second set within the available bit length. A lending bit length is updated when the current bit length is larger than the available bit length. The left bit length is updated when the current bit length is not larger than the available bit length. The left bit length and the lending bit length are adjusted when the current block is in the second set, the lending bit length is positive and the left bit length is larger than a predetermined threshold. | 04-23-2009 |
20090141994 | SYSTEMS AND METHODS FOR IMAGE DATA ENCODING AND DECODING - Image processing systems and methods are presented for encoding 8-bit color image data to 4-bit data using an encoding table by assigning a pixel type value to each 8-bit pixel according to a 9×3 tiling pattern with 9 unique pixel type values in each 3×3 window of the 9×3 tiling pattern, and for decoding the 4-bit image data based on the pixel type value and the encoded data values for neighboring pixels. | 06-04-2009 |
20090268973 | Method And System Providing Edge Enhanced Image Binarization - A method and imaging systems that process images employ image binarization. An image processing system includes a processor, a memory and a computer program stored in the memory and executed by the processor. A scanning system includes a scanner that scans an image source to produce a grayscale image and an image processor that includes a computer program. The respective computer programs include instructions that implement image binarization. The method of image binarization includes generating a solid fills binary image from a grayscale image and generating an edge enhanced binary image from the grayscale image. The method further includes combining the generated binary images to produce a composite binary image and providing the composite binary image as an output binary image. | 10-29-2009 |
20100119168 | METHOD AND SYSTEM FOR BINARIZING AN IMAGE - In one embodiment, the invention provides a method for binarizing an image. The method comprises establishing boundaries of image objects of the image and classifying each image object as either suspect or non-suspect. The method further comprises creating a local binarization threshold map comprising threshold binarization values associated with image objects classified as non-suspect and then expanding the local binarization threshold map to cover the entire image thereby to create a global binarization threshold map for the entire image. | 05-13-2010 |
20100226587 | SYSTEM AND METHOD FOR BINARIZING A GRAY-SCALE IMAGE IN AN ELECTRONIC DEVICE - An electronic device includes an image processing system to binarize a gray-scale image to generate a corresponding binary image in the electronic device. Binarization of the gray-scale image by the image processing system includes generation of a binarization array to store binarization threshold values that each corresponds to a pixel of the gray-scale image, and binarization of the gray-scale image according to all binarization threshold values stored in the binarization array. | 09-09-2010 |
20120183237 | System and method for effectively performing an intra prediction procedure - A system and method for effectively performing an intra prediction procedure with an electronic device includes an encoder that utilizes a delta value comparison procedure to identify optimal delta values for creating optimal predicted blocks of image data corresponding to original blocks of image data. The encoder then utilizes the original blocks and the optimal predicted blocks to generate residual blocks that represent the original blocks in an encoded format. The encoder then generates a bitstream containing the delta value information and the residual block for storage or transmission purposes. A decoder may decode the delta values and the residual block to reconstruct the image block. | 07-19-2012 |
20120308149 | DATA PROCESSING APPARATUS AND DATA PROCESSING METHOD - A data processing apparatus includes a data conversion unit for converting a plurality of sequentially input data into transfer data and sequentially transferring the transfer data, arranging the input data in each conversion unit using one transfer data as one transfer unit and a prescribed number of transfer units as one conversion unit, and the data conversion unit includes a first bit division unit for dividing the input data into first and second divided data, a bit comparison unit for comparing first divided data of an n-th time (n is a natural number equal to or more than 1) and an (n+1)-th time, a bit determination unit for determining whether the first divided data is to be inverted based on the determination result to output inversion information, a first bit inversion unit for outputting data selected based on the inversion information, and a first bit coupling unit. | 12-06-2012 |