Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8085439 | Method and device for processing a print data flow for producing multicolor printed images using a high performance printing system In a method/device for preparing a print data stream for generation of print images with at least two primary colors, the print data contained in an input print data stream are supplied to a processing stage as input print data. The input print data are processed wi... | 12/27/2011 |
| 8054506 | Image forming apparatus and image quality enhancement method thereof An image forming apparatus provides enhancement of image quality. The image forming apparatus includes a window generating unit to generate a main window of a predetermined size using a Lines Per Inch (LPI) and an angle of a dithering mask, and to generate a plurali... | 11/08/2011 |
| 7916351 | Image processing apparatus and method, printer device, and computer readable recording medium An image information acquisition unit obtains first print image information that is binarized with the use of a first threshold matrix. A threshold matrix information acquisition unit obtains information representing the first threshold matrix. A determining unit di... | 03/29/2011 |
| 7602531 | Halftone edge enhancement for production by an image forming device Digital images that are produced by an image forming device may be processed using an edge enhancement technique to reduce the effects of halftone color depth reductions. For each element in the original image, certain detail elements are classified by examining the... | 10/13/2009 |
| 7586650 | Image processing apparatus and image processing method An image processing apparatus provided with: an edge correction unit for, based on a level of a pixel value of an edge area of an image, correcting the pixel value of the edge area of the image; and a halftone processing unit for carrying out a first halftone proces... | 09/08/2009 |
| 7443543 | Image processing apparatus and image processing method A smoothing process is performed on image data to obtain improved image quality. Output image data is switched among image data subjected to smoothing, image data subjected to second bit conversion, and image data subjected to pseudo halftone representation process.... | 10/28/2008 |
| 7414757 | Method for compressing printing hint data sent to a printer There is disclosed in embodiments methods relating to the compression of printing hints. The method in embodiments generates a first set of image pixels having corresponding printing hints. The printing hints are then adjusted to produce a second set of image pixels... | 08/19/2008 |
| 7355755 | Image processing apparatus and method for accurately detecting character edges An image processing apparatus includes an edge amount calculating device configured to calculate edge amounts of an image in a plurality of directions for each of a plurality of frequency bands of the image. A character edge area determination device determines, bas... | 04/08/2008 |
| 7352490 | Method and system for generating contone encoded binary print data streams A method and system to convert an electronic image file described in a page description language containing both contone and non-contone image objects to an intermediate binary format image. The intermediate format image separately encodes the contone and non-conton... | 04/01/2008 |
| 7349126 | System with a random number generator used to remove contouring in CMOS imager data having an extended dynamic range The present invention is a method of image data processing that includes determining whether the image data indicates photodiode saturation, and removing contouring from the image data caused by the saturation. The contour artifact removal is accomplished by adding ... | 03/25/2008 |
| 7345792 | Segmentation-based halftoning A method for selecting a halftoning mode to be applied to regions within an image. The method operates on received image data to identify low-level regions within the received image data. The low-level regions are defined and separated by edges. Pixels that are not ... | 03/18/2008 |
| 7336400 | Transforming an input image to produce an output image An input image is transformed to produce an output image. Pixels occurring at edges that represent detail within the input image are detected to produce an intermediate image. Background fill representing textures of the input image is generated. The background fill... | 02/26/2008 |
| 7330191 | System for secure text display Techniques for securely displaying text on a display panel involve destroying spatial and temporal correlations in an otherwise uniform visual field. The techniques render the displayed text secure with respect to attempts to copy the text using a video capture devi... | 02/12/2008 |
| 7317842 | Global and local statistics controlled noise reduction system A global and local statistics controlled noise reduction system in which the video image noise reduction processing is effectively adaptive to both image local structure and global noise level. A noise estimation method provides reliable global noise statistics to t... | 01/08/2008 |
| 7292374 | Method and apparatus for image processing capable of efficiently performing a gray-scale correction A novel image forming apparatus which makes gray-scale by performing at least one of operations including a manipulation of a plurality of dots arranged in a form of matrix, a single-dot-based density adjustment, or a single-dot-based size adjustment, includes a dot... | 11/06/2007 |
| 7283275 | Logo data generating apparatus, logo data generating method, and data storage medium A logo data generating apparatus and method easily generate logo data suitable for storage to and output by a particular target printer without requiring a complicated process defining the image processing and data communication parameters. An control data receiving... | 10/16/2007 |
| 7236269 | System and method for dithering with reduced memory A dithering system yielding two-dimensional dither functioning is implemented without line memories. For each primary input color, a feedback loop outputs an color input signal plus error that can be preset to different values. The desired result is that vertical ar... | 06/26/2007 |
| 7230742 | Image data interpolating apparatus and medium on which data interpolating program is recorded Even when a jaggy occurs in an original image, the image is accurately enlarged and a good image cannot be obtained as a result. In the case of performing pixel interpolation on an image in a dot matrix state, image data is entered in step 100, the whole imag... | 06/12/2007 |
| 7227670 | Method of selective edge softening and rendering for the suppression of halo Selective edge softening and selective edge dithering is introduced into an image representation to improve local control where halo problems are expected. Selective areas of dilation are isolated and separately dithered or halftoned, the result of which is then swa... | 06/05/2007 |
| 7209244 | Post RIP image rendering in an electrographic printer to minimize screen frequency sensitivity A method of printing multiple images with differing line screen frequencies with a printer is print sensitive to differing line screen frequencies, the method comprising the steps of: converting the images into a digital bitmap comprised of an array of pixels wherei... | 04/24/2007 |
| 7206446 | Image processing apparatus An image processing apparatus includes an edge detecting portion for detecting an edge area of an input image signal and a lightness and chroma detecting portion for detecting a low lightness and low chroma area of the input image signal. An image processing such as... | 04/17/2007 |
| 7190830 | Image processing method, apparatus and memory medium therefor Correction for color fog is securely achieved with limited load of processing. The RGB image data are converted into the luminance Y and the chromaticity values C1, C2, then a highlight point and a shadow point are determined and are connected to defin... | 03/13/2007 |
| 7180636 | Image processor and method The present invention relates to an image processor provided in apparatuses such as digital copiers and printers, and that distinguishes between a character edge region and a continuous tone region of an original image and switches the tone reproduction processing b... | 02/20/2007 |
| 7170642 | Image processing apparatus and method for improving output image quality An image processing apparatus includes a first filtering process device configured to perform a predetermined space frequency characteristic conversion process to input image data having multiple-level gradation. A conversion process device performs a gradation char... | 01/30/2007 |
| 7164504 | Image processing apparatus, image processing method and computer program product for image processing An image processing apparatus processes image data which is obtained by reading an halftone dot image. In the image processing apparatus, the image data is separated into the image data corresponding to halftone dots which form the halftone dot image and other image... | 01/16/2007 |
| 7146045 | Image processing method and apparatus and storage medium Software of a simple configuration checks whether an original image to be corrected is an image picture, and an image correction process based upon a formed histogram of the original image is not performed for an image different from the image picture. An image proc... | 12/05/2006 |
| 7142330 | Image processing method, image processing apparatus and recording medium An image processing method of quantizing multi-tone image data by an error diffusion method, includes the steps of a) detecting change of the image data; and b) oscillating cyclically in image space a threshold for the quantization in an oscillation range controlled... | 11/28/2006 |
| 7127103 | Image processing apparatus and image forming apparatus and image processing method and image forming method A trapping means judges that the gradated region is dark if compared with the uniform region and expands the uniform region to cause colors to overlap when the density average value Da of the gradated region is greater than the density value Du of the uniform region... | 10/24/2006 |
| 7116447 | Halftone dot-growth technique using a dot edge-detection scheme A method for color correcting an original halftone bitmap image by a predefined color correction function to produce a color corrected halftone bitmap image comprising: providing an original halftone bitmap image; estimating the dot area percentage of the original h... | 10/03/2006 |
| 7085003 | Fringe field tailoring with sub-pixel patterns for improved print quality Utilization of fringe field tailoring pixels with sub-pixel patterns are introduced into the bitmap of an image to obtain local control of the normal and tangential electric fields and thereby improve image development. These fringe field tailoring pixels embody mul... | 08/01/2006 |
| 7075680 | Image processing system, image forming system, and recording medium A maximum color identifying portion 41 identifies a maximum color from coloring material colors used to reproduce a color of a line segment after color conversion into coloring material colors by a character/line color converting portion 31 is applied ... | 07/11/2006 |
| 7075677 | Ink jet fault tolerance using oversize drops A printing method identifies where parts of an image will not be printed correctly due to partial or total device failure and if possible adjusts the size of ink dots in adjacent rows or columns so as to lessen the visual effect of failure to print at the original l... | 07/11/2006 |
| 7064866 | Image forming apparatus selectively applying a smoothing operation to image data An image forming apparatus can apply a smoothing process to multiple value image data without generation of errors due to an unnecessary smoothing process. A template matching process unit determines whether or not the original image data is to be subjected to a smo... | 06/20/2006 |
| 7046390 | System and method for scaling and enhancing color text images A system and method for scaling and enhancing color text images utilizes a binary scaling and text enhancing technique by first converting an input color text image to a binary image, i.e., black-and-white image. The scaled and text enhanced image is subsequently co... | 05/16/2006 |
| 7016073 | Digital halftone with auxiliary pixels Utilization of non-printing high-spatial-frequency auxiliary pixels are introduced into the bitmap of halftones utilized in an image to obtain local control of the image development by modification of local average voltage in the development nip. These auxiliary pix... | 03/21/2006 |
| 7016080 | Method and system for improving scanned image detail Methods are provided for generating a dynamic image mask for improving image detail in a digital image. An electronic representation of an image is scanned. A dynamic image mask is generated from the electronic representation of the image. The dynamic image mask has... | 03/21/2006 |
| 6999202 | Method for generating a halftone of a source image In one aspect of the present invention, a method is provided for producing a halftone of a source image. The halftone includes halftone pixels. The halftone pixels are suitable for containing halftone dots. The method selects glyphs corresponding to intensities of r... | 02/14/2006 |
| 6992798 | Apparatus, product, and method of trapping using a distance buffer A method, apparatus, and product to generate trap areas. One embodiment is a method for generating a trap pixel of a trap area surrounding one or more trapping edges of an image that includes, for each trapping edge in the image, and for each pixel within a predefin... | 01/31/2006 |
| 6982799 | Creating composite page images from compressed data A printhead controller controls printing of a page by at least one printhead. The printhead controller, in use, receives data, in a compressed format relating to the page to be printed, the data including a page description comprising a bi-level black layer and a co... | 01/03/2006 |
| 6980324 | Apparatus and method for generating multicolor image When a multicolor image indicated by image data is generated, a signal for generation of a monochrome image according to the image data is amended according to the information about the monochrome image contained in the image data and according to the information ab... | 12/27/2005 |