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    • 1. 发明授权
    • Apparatus and method for enhancing image contrast
    • 用于增强图像对比度的装置和方法
    • US08654058B2
    • 2014-02-18
    • US11270085
    • 2005-11-09
    • Jimmy SuYu-Min HsiaoShiau-Bin Huang
    • Jimmy SuYu-Min HsiaoShiau-Bin Huang
    • G09G3/34H04N5/52
    • H04N5/57H04N5/7416H04N9/3155H04N21/4318H04N21/44008
    • An apparatus for enhancing image contrast includes a micro-processor which presets a plurality of thresholds, such as a black threshold and a white threshold. When determining the brightness of an image is lower than the black threshold, the micro-processor decreases the illumination level of a light source. When determining the brightness of an image is higher than the white threshold, the micro-processor increases the illumination level of the light source. A method for enhancing image contrast includes the steps of receiving an image data; determining whether the brightness of an image is lower than the black threshold; if yes, decreasing the illumination level of the light source; determining whether the brightness of the image is higher than the white threshold; and if yes, increasing the illumination level of the light source.
    • 用于增强图像对比度的装置包括预定多个阈值的微处理器,诸如黑色阈值和白色阈值。 当确定图像的亮度低于黑色阈值时,微处理器降低光源的照明水平。 当确定图像的亮度高于白色阈值时,微处理器增加光源的照明水平。 一种用于增强图像对比度的方法包括接收图像数据的步骤; 确定图像的亮度是否低于黑色阈值; 如果是,降低光源的照明水平; 确定图像的亮度是否高于白色阈值; 如果是,则增加光源的照明水平。
    • 2. 发明申请
    • Apparatus and method for enhancing image contrast
    • 用于增强图像对比度的装置和方法
    • US20070046829A1
    • 2007-03-01
    • US11270085
    • 2005-11-09
    • Jimmy SuYu-Min HsiaoShiau-Bin Huang
    • Jimmy SuYu-Min HsiaoShiau-Bin Huang
    • H04N5/52H04N5/57
    • H04N5/57H04N5/7416H04N9/3155H04N21/4318H04N21/44008
    • An apparatus for enhancing image contrast includes a micro-processor which presets a plurality of thresholds, such as a black threshold and a white threshold. When determining the brightness of an image is lower than the black threshold, the micro-processor decreases the illumination level of a light source. When determining the brightness of an image is higher than the white threshold, the micro-processor increases the illumination level of the light source. A method for enhancing image contrast includes the steps of receiving an image data; determining whether the brightness of an image is lower than the black threshold; if yes, decreasing the illumination level of the light source; determining whether the brightness of the image is higher than the white threshold; and if yes, increasing the illumination level of the light source.
    • 用于增强图像对比度的装置包括预定多个阈值的微处理器,诸如黑色阈值和白色阈值。 当确定图像的亮度低于黑色阈值时,微处理器降低光源的照明水平。 当确定图像的亮度高于白色阈值时,微处理器增加光源的照明水平。 一种用于增强图像对比度的方法包括接收图像数据的步骤; 确定图像的亮度是否低于黑色阈值; 如果是,降低光源的照明水平; 确定图像的亮度是否高于白色阈值; 如果是,则增加光源的照明水平。