dst correction

http://blog.csdn.net/u013286409/article/details/50239377Directory (?) [-]Figure2gamma = 1/2.2 after correction , lower contrast on the left > Clearly you can see the face ) On the right, gamma = 2.2 is corrected, the contrast on the left is

Gamma correction is a non-linear operation of the gray value of the input image, which causes the gray value of the output image to be exponentially related to the gray value of the input image. The exponential gamma is gamma . The grayscale values

Tags: EMGUCV camera calibration C #2015-05-03 14:55 501 people read comments (6) favorite reports Category: C #Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.Directory (?)

Main code Reference 79589506Github:https://github.com/yinghualuowuThe reply has passed, the completion ~With an affine transformation.defImg_transform (car_contours,oldimg,pic_width,pic_hight): Car_imgs= [] forCar_rectinchcar_contours:ifCAR_RECT[

Assembly arithmetic operation commands8086 of arithmetic operation commands can perform addition, subtraction, multiplication, and Division operations on binary or decimal (BCD code) numbers, the data format of an operand can be 8-bit or 16-bit

How to copy a diagonal rectangle from an image. The general idea is as follows:1. Create a single-channel matrix mask with the same size as the source image src, and cvzero (mask);2. Use Cvpolyline () to connect a known 4 corner point

Part VImage feature extraction and description29 Understanding Image Features Target This section I'll try to help you understand what image features are, why image features are important, why corner points are important, and so on. 29.1

Basic ideasThe full-screen quad rectangle2d with the same size as the video screen can be used for testing, which uses a dynamic texture material.Dynamically replace the texture unit of the material with the current frame image at render time by

This ngx bug was found last year and was not written until recently.The Nginx ngx_unescape_uri function does not comply with the standard url decode when processing url decode, causing a series of wafAll have bypass vulnerabilitiesThe function with

DeleteMethod 1: Set its value to an empty stringSetcookie (' user[name] ', ');Method 2: Set the target cookie to the "expired" state.The lifetime of the cookie is set to expire, and the lifetime is the same as the browser, which is deleted when the