公开(公告)号：US07953286B2

公开(公告)日：2011-05-31

申请号：US11890606

申请日：2007-08-07

申请人： Patricia Wei Yin Chiang ,  Yau Wai Hui

发明人： Patricia Wei Yin Chiang ,  Yau Wai Hui

IPC分类号： G06K9/00 ,  G06K9/40 ,  G06K9/38 ,  G03F3/08

CPC分类号： H04N5/20 ,  G06T5/009 ,  G06T5/40 ,  G06T2207/10016

摘要： In a process for enhancing contrast of an image having pixels in different brightness intensities, a histogram in discrete bins is generated. Each bin represents a pixel population of at least one pixel brightness intensity. A peak and a peak region of the histogram is then identified, wherein the peak region is a range of discrete bins around the peak. An average pixel population within the peak region is computed, and the pixel populations of the discrete bins within the peak region that exceeds the average pixel population are distributed. A transfer curve for mapping onto the image is then generated. The process can be used in an image processor for enhancing contrast of an image having pixel. Still further, a display having a receiver and a screen can include the foregoing image processor.

摘要翻译： 在用于增强具有不同亮度强度的像素的图像的对比度的处理中，生成离散区域中的直方图。 每个bin表示至少一个像素亮度强度的像素总数。 然后识别直方图的峰值和峰值区域，其中峰值区域是峰值周围的离散区域的范围。 计算峰值区域内的平均像素总数，并且分布超过平均像素总数的峰值区域内的离散区域的像素群体。 然后生成用于映射到图像上的传输曲线。 该处理可以用于图像处理器中以增强具有像素的图像的对比度。 此外，具有接收器和屏幕的显示器可以包括前述图像处理器。