37 results about "Indexed color" patented technology

The invention relates to the field of information processing, in particular to a generation type image compression method and device suitable for text documents. The method comprises the following steps: (1) converting a text document into an RGB bitmap; (2) pre-constructing a color table according to the characteristics of the text document; (3) mapping and indexing the RGB bitmap, mapping the RGB value of each pixel with a color table, finding the closest color value in the color table, determining a corresponding index color, and recording an index number to form an index color image; and (4) compressing the image data area according to an LZW or other data compression algorithm to form a final image file. By means of the image compression method, reasonable filtering and denoising areadaptively conducted on the document official document, original character and color information is reserved as much as possible in the image scanning and compressing process, denoising is simple andhigh in speed, a document conversion algorithm is easy to program, and the image compression method is suitable for document storage work with the document official document type pixel low in color complexity.

A calculation unit (58) references texture data (62) in a storage unit (60) and acquires texel information of index color formal An integral look-up table (64) has a structure containing a plurality of color look-up tables based on the detail degree (LOD) of the area to be plotted A look-up table reference unit (70) selectively references the color look-up table based on the LOD stored in the integral look-up table (64) according to the LOD value of the texel obtained by the LOD calculation unit (68), acquires color information corresponding to the index value of the texel, and outputs it to the calculation unit (58). The calculation unit (58) performs filter processing such as bi-linear interpolation according to the texel color information and outputs the texel information after the processing.

Methods and systems in an image processing device for controlling colors that are located external to a gamut are disclosed. A plurality of color values can be automatically provided as input to said image processing device, wherein said image processing device is under a control of a particular dimensional order, typically a three-dimensional order, but alternatively can be a two-dimensional order. Next, an operation can be performed dynamically determining which color value among the plurality of color values has attained a gamut limit. Thereafter, the particular dimensional order can be automatically reduced, thereby providing improved control for colors that are located external to said gamut. The plurality of color values analyzed is generally associated with three colors—cyan, magenta, and yellow.

A method for displaying an on-screen display (OSD) is disclosed. An OSD with a first and second icons superimposed thereon is firstly rendered with a first color palette. The first and second icons are overlapped. The first icon is rendered with a second color palette and superposed over the originally displayed first icon. The second color palette is substantially similar to the first color palette but replaces an indexed color of the first color palette corresponding to the background color of the originally displayed first icon with a transparent color and another indexed color of the first color palette corresponding to the foreground color of the originally displayed first icon with a non-color color. The second icon is rendered with the first color palette and superposed over the originally displayed second icon.

The present disclosure describes a method, an apparatus, and a non-transitory computer readable storage medium for displaying pictures in an application. The method includes obtaining original picture information and performing an indexing operation on the original picture information to obtain an indexed object. The method also includes performing a de-indexing operation on the indexed object, and establishing a bitmap object of an index color format according to a color table and a pixel buffer in the indexed object. The method further includes displaying the picture in the application by using the bitmap object. By using the present disclosure, a memory occupation rate in an electronic device can be effectively reduced, thereby solving the existing problem and improving the functionality and stability of the application in the electronic device.

A single source image encoder encodes more than one display stream, such as multiple display streams each for a different display or multiple display streams for the same display, using multiple index color history (ICH) buffers. As applied to a DSC encoder, the same DSC encoder is used to encode more than one DSC compliant display stream. Multiple encoded display bitstreams are output as multiple display data streams to a plurality of displays. Such a configuration can significantly reduce the area cost of an integrated circuit that employs an image encoder since additional encoders are eliminated.

A computer implemented method and apparatus for reconstructing indexed color spaces. The method comprises accessing a plurality of indexed color spaces, wherein each indexed color space comprises a bit depth; and creating one or more unions of two or more indexed color spaces from the plurality of indexed color spaces, wherein the bit depth of the union of the two or more indexed color does not exceed the bit depth of any of the two or more indexed color spaces.

A method for combining image based on image format of index color includes making histogram statistics on color of source image and judging whether color number in histogram is less than M or not, using color in histogram as palette for synthetic image and selecting color with minimum color difference in palette used for synthetic image as pixel in each synthetic image as well as using index valueof selected color to realize image combination if it is or otherwise selecting m numbers of colors in histogram and utilizing M-m numbers of colors as palette of synthetic image commonly.

An inspection apparatus includes circuitry to acquire a first scanned image by scanning each recording media printed with a target image, acquire a second scanned image by scanning one recording medium printed with a color chart including a plurality of color patches, generate index color information including information of index colors having higher frequency of occurrence on the one recording medium for each of the color patches, generate color conversion information by associating each of the color patches and each of the index colors, generate a reference image for each of the index colors by performing a color conversion of the target image by applying the color conversion information, calculate a difference of a color value of each pixel configuring the first scanned image and a color value of each pixel of each of reference images, and inspect the printed matter based on a plurality of color difference values.

A method and system of determining the screen capability and rendering the appropriate display attribute is herein described. The present invention performs this task by using a color table, which contains a list of object types and a corresponding list of display attributes. The application program obtains the correct display attribute for the object by calling the color table, giving it an identifier of the object. The color table is indexed by the identifier of the object and a screen capability flag that is obtained, in one embodiment, from the operating system. The color table provides the display attribute for the specified object based on the screen capability flag. Advantageously, the application program does not need to know the computer's display capability. Furthermore, the application program needs only one piece of computer code, regardless of the number of display capabilities which are possible. Thus, memory space in the palmtop is conserved. In another embodiment of the present invention, the application program is allowed to modify the default values of the display attributes in the color table. Thus, an application program could use its own color to display an object if the default color is undesirable.

The invention relates to a method for preparing yarn for axminster carpet production, which employs an axminster carpet loom, computer software for pattern recognition and analysis, and an automatic winder for fixed-length winding control by a computer. The method comprises the following steps: analyzing and sorting patterns with index color in a PAT or BMP format produced by the axminster carpetloom via the computer software for pattern recognition and analysis, and setting and outputting the yarn length needed for each color at each position and relevant information according to the production process; and automatically winding the yarn length at each position by the automatic winder for controlling fixed length by the computer, and sticking identification labels with contents such as the yarn length and position information and the like. The method has the advantages of changing rough production in the background technology, realizing fine production of the axminster carpet yarn, greatly reducing yarn loss, improving production efficiency and lowering manufacturing cost.

The present invention provides an image processing device capable of realizing appropriate color expression without requiring a large increase in data amount of image data for displaying a composite screen. A television broadcast receiver (1) includes a synthesis processing section (40) and an OSD processing section (24) for creating an OSD plane C as a composite screen in index color expression by combining an OSD plane U and OSD plane L, which are display screens in the index color expression. By the processing section (40) and the OSD processing section (24), the OSD plane C for attaining a display effect in which the OSD plane U and OSD plane L are superimposed is created.

The invention discloses a weaving process of an imitated cross-stitch brocade handicraft picture. The weaving process comprises the following steps that 1) a picture electronic draft is obtained; 2) computer drawing is conducted; 3) the picture is adjusted; 4) computer drawing modification is conducted; 5) the size of a picture frame is adjusted, pixels are computed according to the size of the length and the width, the thread count, the warp count and the weft count of the fabric meeting the actual production requirement, and therefore the image pixels are changed; 6) color separation processing is conducted through a mode tool, and the picture is converted to a forced index color picture of the fabric meeting the actual production requirements; 7) color changing processing is conducted through JCAD software, edge organizations are added, picking shuttles of 3-6 groups of wefts are generated according to the technological requirements, an organization table and an auxiliary organization table are filled, and a sample card file is set; 8) a computerized EP or WB file is generated; 9) the computerized file is input into a control computer in a producing department, and products meeting fabric production requirement are produced. The imitated cross-stitch brocade handicraft picture is similar to a cross-stitch, but not the cross stitch.

The present disclosure describes a method, an apparatus, and a non-transitory computer readable storage medium for displaying pictures in an application. The method includes obtaining original picture information and performing an indexing operation on the original picture information to obtain an indexed object. The method also includes performing a de-indexing operation on the indexed object, and establishing a bitmap object of an index color format according to a color table and a pixel buffer in the indexed object. The method further includes displaying the picture in the application by using the bitmap object. By using the present disclosure, a memory occupation rate in an electronic device can be effectively reduced, thereby solving the existing problem and improving the functionality and stability of the application in the electronic device.

The invention relates to a book arranging method with fore-edge indexes. Fast check words are arranged at or around the fore-edge of a book, and various stages of long index marks are presented at the fore-edge of the book in a folding state; the index marks are formed by staking and presenting a plurality of index frames respectively made at the fore-edges of inner pages, and the index frame of the same index mark has the same pattern position and the same shape. A plurality of primary index marks form a primary sequence index, a plurality of secondary index marks form a secondary sequence index, and so repeated. The secondary sequence index is submitted to and distinguishes any sequence item and an inner page of the primary sequence index, a tertiary sequence index is submitted to and distinguishes any sequence item and an inner page of the secondary sequence index, and so repeated. The fast check words correspond to various stages of index marks which are distinguished by an index shape arranging method, an index size arranging method, an index color arranging method, an index position arranging method or an index arranging method, and the like. A reader finds various stages of index marks which correspond to the fast check words according to a catalog so as to rapidly open the pages with the index contents. The invention provides a fast check method which facilitates platemaking and bookbinding and is faster than the prior art.