摘要:
A halftoning process for printing digital images includes: receiving CMYK input pixel data that define an input pixel of an input digital image in terms of continuous tone input data values for cyan, magenta, yellow, and black colors, wherein I(C), I(M), I(Y), I(K) respectively correspond to the continuous tone input data value for the cyan, magenta, yellow, and black colors; converting the CMYK input pixel data to modified CMYKRGB* pixel data that define the input pixel in terms of error-adjusted continuous tone data values for the cyan, magenta, yellow, and black colors, and also in terms of red, green and blue colors, wherein I*(C), I*(M), I*(Y), I*(K), I*(R), I*(G), I*(B) respectively correspond to the error-adjusted converted continuous tone input data values for the cyan, magenta, yellow, black, red, green, blue colors; quantizing the modified CMYKRGB* pixel data to derive intermediate output CMYKRGB pixel data in which the cyan, magenta, yellow, black, red, green, and blue colors are each defined by either a first quantized value that represents no color or a second quantized pixel value that represents full color, wherein O′(C), O′(M), O′(Y), O′(K), O′(R), O′(G), O′(B) respectively define said intermediate output pixel data for the cyan, magenta, yellow, black, red, green, and blue colors, and wherein the intermediate output CMYKRGB pixel data define an output pixel that corresponds to the input pixel; converting the intermediate output CMYKRGB pixel data to CMYK output data in which the output pixel is defined in terms of CMYK output values O(C), O(M), O(Y), O(K) respectively for the cyan, magenta, yellow, and black colors, wherein each of the CMYK output values is defined by either a first output value representing no color or a second output value representing full color.
摘要:
A sediment-type self-sustained phototrophic microbial fuel cell for generating electricity through the syntrophic interaction between photosynthetic microorganisms and heterotrophic bacteria in algae cultivation ponds used for biodiesel production. The microbial fuel cell is operable to continuously produce electricity without the external input of exogenous organics or nutrients.
摘要:
What is disclosed is a system and method for improving vector half-toning in dot-on-dot printing devices. The method utilizes minimum spatial luminance variation to achieve a smooth color half-toning pattern transition. Red (M+Y), blue (C+M), and green (C+Y) dots in addition to CMY dots are utilized to achieve darker colors without black ink. As gray values to be printed get darker, green, red and blue pixels get introduced. Black is not introduced until the gray values are darker by approximately 30%. Given a fixed half-toning step, the CMY to CMYKRGB conversion is controlled. The primary CMY color densities are used as high as possible before secondary color dots are used. With the maximum possible primary CMY color densities achieved, the secondary color densities are used as high as possible before using any black dots. This minimizes black dot density generation. Secondary color densities are minimized by maximizing primary color densities.
摘要:
Systems and methods provide increased accuracy in recalibrating the tone reproduction curve (TRC) for a photoelectric image sensor that senses density values. The sensor outputs sensed density values for tone patches. A recalibrated TRC is calculated from the original TRC, the known densities of the tone patches, and the sensed density values of the tone patches.
摘要:
A method to determine the color status of a scanned original segments a binary halftone image into a predetermined number of local windows and converts each local window to a device-independent color space. The method then determines a color space parameter for each local window and compares the color space parameters for the local windows to at least one threshold to determine the color status of the scanned original. An apparatus having a scanner creates a scanned image of an original and has at least one processor to create a binary halftone image from the scanned image, segment the binary halftone image into a predetermined number of local windows, convert each local window to a device-independent color space, determine a color space parameter for each local window, and compare the color space parameter for each local window to at least one threshold to determine the color status for the scanned original.
摘要:
In its many embodiments, the present invention provides a novel class of pyrazolo[1,5-a]pyrimidine compounds as inhibitors of cyclin dependent kinases, methods of preparing such compounds, pharmaceutical compositions containing one or more such compounds, methods of preparing pharmaceutical formulations comprising one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the CDKs using such compounds or pharmaceutical compositions.
摘要:
In its many embodiments, the present invention provides a novel class of pyrazolo[1,5-a]pyrimidine compounds as inhibitors of cyclin dependent kinases, methods of preparing such compounds, pharmaceutical compositions containing one or more such compounds, methods of preparing pharmaceutical formulations comprising one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the CDKs using such compounds or pharmaceutical compositions.
摘要:
A combined dot density (FM) and dot size (AM) modulation halftoning method and system produces a halftone in which both the density and size of the dots are modulated. In addition to modulating the dot size and density, the halftoning method can also explicitly control the size of dot clusters and different intensity levels.
摘要:
A method and device is for a multi-touch based correction of a handwriting sentence system. The method includes receiving touch inputs, generating interpreted input data as a function of the touch inputs, and displaying the interpreted input data on a display device. A request to correct a portion of the interpreted input data then switches to a correction mode. During the correction mode, a correction user interface is displayed on the display device, a gesture is received so setting data is determined as a function of a first disposition of the gesture, the setting data indicating a type of correction to be applied to the portion of the interpreted inputs, a correction data is determined as a function of a second disposition of the gesture, and the portion of the interpreted input data is corrected as a function of the touch input, the setting data, and the correction data.
摘要:
A microbial fuel cell (MFC) includes a cation exchange membrane defining an anode chamber, an anode positioned in the anode chamber, and a cathode in contact with an exterior of the cation exchange membrane. A restrictor in contact with the cation exchange membrane defines an opening through which water flows into or out of the anode chamber. The MFC includes bacteria in the anode chamber that oxidize organic compounds in the water while oxygen is reduced at the cathode, such that electricity is generated in the absence of an external power source. In an example, the MFC is coupled to a buoy and provides electricity to an electrically powered device also coupled to the buoy, thereby providing a low-maintenance source of power in remote locations. The electrically powered device may be, for example, a light or a sensor.