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Questions tagged [cimg]

The CImg Library is a small, open source, C++ toolkit for image processing.

The CImg Library is a small, open source, C++ toolkit for image processing.

CImg stands for Cool Image: It is easy to use, efficient and is intended to be a very pleasant toolbox to design image processing algorithms in C++. Due to its generic conception, it can cover a wide range of image processing applications.

297 questions
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How do take a screenshot correctly with xlib?

I am trying to capture an image of the screen for use in screencasting. Thus I need a fast solution, and cannot rely on shell programs such as import or xwd. This is the code I have written so far, but it fails and gives me a junk image, which just…
user406009
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Runtime error on Windows when trying to load image with libpng

I am using pHash and that library uses libpng. I am having issues running my program because libpng fails loading a PNG file. Version of libpng: 1.4.19 Platform: Windows 10 Environment: Visual Studio 2015 Trivial Just if you came up with the…
Andry
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Need a good algorithm to categorize 8GB of pictures

I have about 150.000 pictures and some of these are duplicates. I have figured that the SSIM algorithm is a good choice to compare two pictures and see if they are duplicates. However if I want to find duplicates that way, I will have to compare…
moccajoghurt
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Can't save image to file properly with cimg library

Here is the entirety of my code: #include "CImg.h" #include using namespace cimg_library; int main() { CImg image(100,100,1,3,0); const float color[] =…
Tneuktippa
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How to get rgb value by cimg?

CImg src("image.jpg"); int width = src.width(); int height = src.height(); unsigned char* ptr = src.data(10,10); How can I get rgb from ptr?
user198729
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fastest image processing library?

I'm working on robot vision system and its main purpose is to detect objects, i want to choose one of these libraries (CImg , OpenCV) and I have knowledge about both of them. The robot I'm using has Linux , 1GHz CPU and 1G ram and I'm using C++ the…
ajlajlajl
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can the CImg library draw thick lines

I have been using the CImg library, and have been pleased with how easy it is to integrate and use. However, I now want to draw thick lines (i.e., more than one pixel thick). It is not clear from the API documentation of the draw_line function…
M Katz
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Loading PNGs with CImg

I am unable to load PNGs with CImg. I've heard you need to get libpng / zlib to get to work first but I am unsure how to set this up. I am on Ubuntu. My source: #include #include #include #include #include…
worbel
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Convert an image loaded using PIL to a Cimg image object

I am trying to convert a iamge loaded using PIL to a Cimg image object. I understand that Cimg is a c++ library and PIL is a python imaging library. Given an image url, my aim is to calculate the pHash of an image without writing it onto a disk.…
Shobhit Puri
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cimg library - linking error

I try to use the cimg library. I have included the CImg.h-header file. But when I try to compile it, I get a linking error. /tmp/cc2tvYsW.o: In function `cimg_library::cimg::Mutex_info::trylock(unsigned…
ArchLinuxTux
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CImg: Failed to recognize the jpg format

#include #include #include "CImg.h" using namespace cimg_library; using namespace std; int main(){ CImg image("lena.jpg"), visu(500,400,1,3,0); const unsigned char red[] = { 255,0,0 }, green[] = { 0,255,0 },…
PSlayer
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Create video from array of pixel values in C++

Does anyone know of a method to save a sequence of pixel values, stored in an array to a video? Currently I'm using Cimg to visualise a simple n-body simulation, whilst I can save each iteration to an image file, this is very slow. Any suggestions…
Angus
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Eigen and CImg compatibility issues

So, I'm trying to record and display an image using CImg but I'm also using a linear algebra library called Eigen. Coincidentally, they each seem to have a macro with the same name, "Success". I've tried doing an #undef but that didn't work out…
user2196118
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CImg Error : 'gm.exe' is not recognized as an internal or external command,

I am new to c++ programming , today i was trying to save an image using CImg . CImg is C++ Template Image Processing Library . The basic code i wrote is(Please forgive any syntax erros , as copied part of my codes) : #include "CImg.h"// Include CImg…
web2dev
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Executing member function on each comma-separated object

Here is the relevant code from the full listing: #include "CImg.h" using namespace cimg_library; int main() { CImg src("Tulips.jpg"); int width = src.width(); int height = src.height(); int depth = src.depth(); //New…
Junk Mvg
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