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Image enhancement device, image enhancement method, image enhancement program, and signal processing equipment

机译:图像增强装置,图像增强方法,图像增强程序和信号处理设备

摘要

The present invention can improve the image quality by sharpening sufficient image even if by making appropriate compensation high frequency with a simple configuration, image enlargement processing is performed even if the video as well as still pictures I is an object of the present invention. Extracted as the first signal S1 high-frequency components from the input image signal Sin to (11) HPF, 2 square operation unit (12) generates a square signal S12 by squaring the first signal S1. (13), to generate a first differential signal S13 by differentiating the squared signal S12, a second differentiator (14), a second differential signal S14 by differentiating the input image signal Sin first differentiator I want to generate a. Multipliers (15) produces a second signal S2 by multiplying the second differential signal S14 from the first differential signal S13. An adder (16) generates an output image signal Sout by adding the input image signal Sin as a compensation signal to the second signal S2.
机译:即使通过简单的配置对高频进行适当的补偿,本发明也可以通过锐化足够的图像来提高图像质量,即使视频和静止图像I是本发明的目的,也进行图像放大处理。 2平方运算单元(12)从输入图像信号Sin到(11)HPF中提取高频分量作为第一信号S1,通过平方第一信号S1来产生平方信号S12。 (13),为了通过对平方信号S12进行微分来生成第一差分信号S13,第二微分器(14),通过对要生成的a的输入图像信号Sin进行微分来生成第二差分信号S14。乘法器(15)通过将第二差分信号S14与第一差分信号S13相乘来产生第二信号S2。加法器(16)通过将输入图像信号Sin作为补偿信号与第二信号S2相加来生成输出图像信号Sout。

著录项

  • 公开/公告号JPWO2010113342A1

    专利类型

  • 公开/公告日2012-10-04

    原文格式PDF

  • 申请/专利权人 シャープ株式会社;

    申请/专利号JP20110506954

  • 发明设计人 合志 清一;

    申请日2009-10-14

  • 分类号H04N5/208;G06T5/20;

  • 国家 JP

  • 入库时间 2022-08-21 17:36:54

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