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- opencv实现两幅图帧差,两幅图片进行相应像素的差运算,根据阈值可以确定输出值,归零或2-Achieve frame difference of two images .Two photos of corresponding pixels difference operation, according to the threshold can determine an output value, zero or 255
AdaptiveThreshold
- 固定阈值二值化和自适应局部阈值二值化对比分析,opencv实现-Fixed threshold value and adaptive threshold binarization comparative analysis, opencv implementation
juxingjiance
- 实现证件的分割,具有良好的参考价值,使用矩形检测,阀值变换和反色等-Achieve segmentation of documents, has a good reference value, use the rectangle detection, threshold, transformation and anti-color, etc.
open-cv
- open cv 作灰階並用滑鼠查看圖形上每點灰 階值,cvThreshold,onMouse cvThreshold(原始圖形IplImage資料結構,計算後結果IplImage資料結構,門檻值,最大門檻值數值,CV_THRESH_BINARY) open cv 作灰阶并用滑鼠查看图形上每点灰阶值,cvThreshold,onMouse cvThreshold(原始图形IplImage资料结构,计算后结果IplImage资料结构,门槛值,最大门槛值数值,CV_THRESH_BINARY)-o
histMeanValue
- 包含三个功能的演示。直方图,otsu算法,计算灰度中值。最后统计0像素占的比例。 float getMeanValue(IplImage* image) //灰度均值 int getMedian(IplImage* image) //灰度中值 void otsu (IplImage *image) //大律法阈值分割-Contains three functional demo. float getMeanValue (IplImage* image) //gray ave
EX1
- 1.用OpenCV实现打开一幅彩色图像,显示出来; 2.将其转换为灰度图并保存为文件; 3.将其二值化并保存为文件(二值化阈值最好用滚动条交互式输入,图像二 值化效果能实时变化更好,可参考OpenCV的sample程序edge.c)-1 using OpenCV open a color image display 2 converted to grayscale and saved as a file 3 the second value and save
1GHY3249Video
- 对视频进行运动检测,基于相邻两帧帧间差分。 在相邻两帧(也可以为多帧)间计算逐象素的灰度差,并通过设置阈值来确定对应运动前景的象素,进而得到运动前景区域。-On a video motion detection, based on the two adjacent interframe difference. The gray-scale difference between the two adjacent frames (may be a multi-frame) calculating
1GHY3249HSV
- 基于HSV颜色空间的目标检测,先阈值化实现初步分割,再二值化H通道,阈值不同结果会有差异。最后进行噪声去除。 -Target detection based on the HSV color space, the first threshold value of the initial segmentation, and then binarized H channel, there is a difference between the different results of the t
1
- 利用当前帧图像与背景图像对应象素点的灰度差值来检测车辆。如果当前图像的象素点和背景图像的象素点灰度值差别很大,就认为此象素点有车通过;相反,如果当前图像的象素点和背景图像的象素点灰度值差别较小,在一定的阈值范围内,我们就认为此象素点为背景象素点。-Using the current frame image and the background image corresponding to the difference between the pixel gray vehicle is detec
opencv
- 学习使用OpenCV,对输入的一段彩色视频,用OpenCV实现以下功能或要求: 1. 对输入视频的每一帧图像都用同一个阈值进行二值化; 2.在每帧二值化图像上叠加上含自己学号与姓名等信息的版权字幕; 3. 在处理的过程中,实时显示每帧图片处理之后的效果; 4.将所有这些二值化图像按视频原来顺序合成输出一个视频文件,按原输入视频播放速度的两倍合成; 5. 做成如下的命令行格式,xxx.exe 输入视频文件名 二值化阈值 输出视频文件名(例如 MyBiVideo.exe in
binary-video
- 学习使用OpenCV,对输入的一段彩色视频,用OpenCV实现以下功能或要求: 1. 对输入视频的每一帧图像都用同一个阈值进行二值化; 2.在每帧二值化图像上叠加上含自己学号与姓名等信息的版权字幕; 3. 在处理的过程中,实时显示每帧图片处理之后的效果; 4.将所有这些二值化图像按视频原来顺序合成输出一个视频文件,按原输入视频播放速度的两倍合成; 5. 做成如下的命令行格式,xxx.exe 输入视频文件名 二值化阈值 输出视频文件名(例如 MyBiVideo.exe in
Patch
- 1利用SIFT关键点进行图像匹配 2在视频中,在一帧中检测关键点,之后利用canonical patch传递关键点,经过一定阈值的帧后,再次计算关键点,利用相邻帧之间关键点的差别很小,只更新关键点的位置,提高帧率。 3阈值自动确定-1 uses SIFT image matching key points 2 in the video, detecting critical points in one frame, after which it canonical patch tra
MinAreaFilter
- 用OPENCV中的序列实现将低于设定阈值面积的连通域从图像中去除的函数,输入输出图像需为二值图像.-With OPENCV in sequence implements will be lower than the set threshold value of the communication area removed the image domain function, for an input-output image is a binary image.
ColorDetect
- 选取感兴趣像素点的小程序,可设定RGB值与阈值。-Select the pixel of interest applet can be set RGB values with a threshold value.
openCV-binarization
- 将一幅彩色图像二值化为灰度图像,其中灰度值大于某一阈值的像素赋予灰度值1,小于该阈值的像素赋予灰度值0-A color image to a grayscale image binarized, wherein the gray value is greater than a threshold value assigned to the pixel gray value 1, is smaller than the threshold value assigned to the pixel g
harris
- 该算法是基于像素领域包含若干元素的近似圆形模板,对每个像素基于该模板领域的图像灰度计算角点响应函数(CRF)的数值,如果大于某阈值且为局部极大值,则认为该点为角点。角点的精度与圆形模板大小无关,圆形模板越大,检测的角点数越多,则计算量也越大,本文圆形模板包含37个元素,该近似圆形模板-The algorithm is based on pixel art consists of several elements approximation circular template for each p
yuzhifenge
- 使用滑动条进行阈值分割,可以直观观察到阈值选取不同所带来的效果。-Use the slider to threshold segmentation, can be directly observed the effect of the different threshold value.
bijiaolunkuo
- 比较轮廓面积 求出最大面积 并以此为阈值删除阈值以下的面积-Compared to the contour area and the area below the threshold value of the maximum area.
erzhihua
- 基于OpenCV的图像二值化程序,可自适应阈值-OpenCV based on the image of the two value of the program, the adaptive threshold
erzhihau
- 通过设置阈值,用opencv实现了对图像的二值化效果-By setting the threshold value, using opencv realized the image binarization