batch convert images to grayscale

Extended image content processor: grayscale transformation and processor parameter problems You want to extend the image processor to process the color of each independent pixel. You also want to change the processor parameters from the XNA main project.Solution In the previous tutorial, you learned how to extend the content processor so that you can process and change the value of an independent pixel. All public variables declared in the Processor c

#include "stdafx.h"//implement to convert a color picture to a grayscale imageint _tmain (int argc, _tchar* argv[]){Iplimage *image; Initialize Save original imageIplimage *result; Save Grayscale imageImage = Cvloadimage ("Picture 3.jpg",-1);int channel =-1;int depth =image->depth;Cvsize sz;Sz.width =image->width;Sz.height =image->height;result = Cvcreateimage (S

1, first load the original picture;2, Cvcvtcolor (IMG, source, Cv_bgr2gray), convert to grayscale image;3, Cvthreshold (source,source_gray,100,255,cv_thresh_binary), binary processing.Since the original picture will have a certain angle, need to rotate, and the rotation can use the function provided by OPENCV, this article is written by itself, that is, by rotating 360, and record the rotation of an angle t

There are three ways to convert an image from a color graph to a grayscale mapThe weighted method of mean value method is the maximum value method, respectively!The weighted method is Gray==0.3*r+0.59*g+0.11*bThe mean method is gray== (R+G+B)/3Max value is max (R,G,B)A=imread (' D:\lena. BMP ');R=double (A (:,:, 1));G=double (A (:,:, 2));B=double (A (:,:, 3));[M,n]=size (R);Bw=zeros (M,n);Bw=0.3.*r+0.59.*g+

In image processing, we often need to convert real-color images into black and white images. Strictly speaking, it should be a grayscale image, because the real black and white images are only pure black and pure white. Before getting started, let's briefly add the image rep

pictures connected Print (Coll[0].shape) # picture size before connection, all the same mat=io.concatenate_images (coll)print(mat.shape) # the size of the array after the connectionShow Results:2(870, 580, 3)(2, 870, 580, 3)As you can see, 2 3-dimensional arrays are concatenated into a 4-dimensional arrayIf we make a batch operation on the picture, we want to save the result after the operation, it can be done.Example: all PNG sample

check again... ') endfor II = 1: img_num % start traversing imgname = filelist {II}; I _img = imread (imgname); % convert to grayscale image [sizex, sizey, sizez] = size (I _img); If sizez = 3 strcmp (imagetype, 'Gray ') I _img = rgb2gray (I _img); thesizez = 1; end if II = 1 disp (strcat ('current size range: ', num2str (sizex),' * ', num2str (sizey),'; \ n ')); elseif (II = 1) (ischangeszie = 1) disp (

Bytes ------------------------------------------------------------------------------------------------------------------------------- Batch processing of images Skyseraph July 4th 2011 hqu Email: zgzhaobo@gmail.com QQ: 452728574 Latest modified Date: July 4th 2011 hqu Bytes -----------------------------------------------------------------------------------------------------------------------------

Batch conversion of images to PDF In life, people often take some photos to remember. However, after a long time, they often get too many photos and are too messy to read them. Do you want to make an electronic album, or create a book in pdf format? Cainiao's JPG is converted to a PDF converter, which is fast and easy to share with you. Most of the PDF conversion software on the Internet cannot effectively

I went out for a weekend and took a few digital photos. Before uploading files to the Internet, you need to narrow down the file. In the past, "Magic Hands and shadows" were used in windows. How can this work be done in Linux? I started to use gimp for a conversion, but it was too troublesome. Gimp supports batch processing scripts. Google's keyword "gimp-image-scale" can find some scripts for this. However, it is more convenient to use an image Magic