magick++

问题 I am converting a system call to Magick++ in my code, but I am having some trouble converting the threshold and depth . The original: convert /foo/bar.ppm -crop WxH+X+Y -threshold 50% -depth 1 /foo/out.ppm My current C++ version is: Magick::InitializeMagick(*argv); Magick::Image img; img.read("/foo/bar.ppm"); Magick::Image temp_img(img); temp_img.chop(Magick::Geometry(X,Y); temp_img.crop(Magick::Geometry(W,H)); temp_img.threshold(.50); temp_img.depth(1); temp_img.write("/foo/out.ppm"); The

问题 This question has already been asked here, but since I have many more details to provide, I think it is best to start with a new question. I have trouble linking the ImageMagick lib files in my program that uses the Visual Studio MSVC 2015 compiler. Here are the steps I have followed: I have compiled the static MT runtimes by using the "configure.exe" utility and built in Visual Studio the solution it generated, "VisualStaticMT.sln". This creates lib files such as "CORE_RL_Magick++_.lib" in C

问题 I have recently installed ImageMagick libraries for C++. I have no prior experience with C++ GUI but I'm very good in C++ command line programming. I have installed ImageMagick in Windows through an .exe file and copied libraries and header files to C++ but whenever I try to run any demo program I am consistently getting this error: 1>------ Build started: Project: Sufiyan, Configuration: Debug Win32 ------ 1>main.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public:

问题 I discovered via my previous question that depth appears to work differently when I use it in ImageMagick's convert vs Magick++ . CLI version and result Using: $ convert /foo/bar.ppm -depth 1 /foo/out.ppm I get an output image which, upon inspection, shows a 1-bit color depth: $ identify /foo/out.ppm out.ppm PPM (blah blah) 1-bit sRGB (blah blah) C++ version and result Using the code: #include <Magick++.h> int main(int argc, char **argv) { Magick::InitializeMagick(*argv); Magick::Image img;

问题 I'm trying to get the color of a pixel in a jpg image and all the tutorials I can find online say to use pixelpacket which doesnt exist anymore. searching and searching through google i've found that getvirtualpixels might be the new way but that doesnt seem to exist in the newest version either. so how do I get the color of pixels from an image with an image cache? I do not need to set any pixels btw. Using windows10 and visual studio 2015 回答1: PixelPacket structures have been replaced with

问题 I'm trying to extract all images out of PDF files in C++. I'm stuck in decoding CCITT encoded images. Does anyone know an opensourced code for this? I use the ImageMagick Magick++ Library, is it possible to do the decoding with this library, too? Thanks for your help! 回答1: CCITT is one of the encodings TIFF supports, though in a PDF file the CCITT images are probably raw data. You can convert a raw CCITT image into a Tiff image using Fax2Tiff. It should be easy enough to work with the image

问题 I am trying to add texts to images in Magick++ by doing so: Method 1: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); image.font("Waree"); image.fontPointsize(36); image.strokeColor(color); image.fillColor(color); image.annotate("HelloWorld!", NorthWestGravity); Method 2: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); std::list<Magick::Drawable> text_draw_list; text_draw_list.push_back

问题 I am trying to add texts to images in Magick++ by doing so: Method 1: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); image.font("Waree"); image.fontPointsize(36); image.strokeColor(color); image.fillColor(color); image.annotate("HelloWorld!", NorthWestGravity); Method 2: Magick::Image image(Magick::Geometry(800,800),Magick::Color("white")); Magick::Color color(0,0,0,0); std::list<Magick::Drawable> text_draw_list; text_draw_list.push_back

问题 I'm using ImageMagick (Magick++) in my application but when trying to load an image I get the error: Unable to open image '??': Invalid argument @ error/blob.c/OpenBlob/2657 From reading other peoples problems online ?? is typically the file trying to be loaded, and I am obviously not passing the file location ?? to the loader - so it appears not to be able to resolve the string I am giving it. Tried using Unicode and Multi-byte. Copied project settings from example(s). File definitely exists

问题 I am trying to convert an image loaded in from a GIF via Magick++ into a cv::Mat . I have already converted from cv::Mat to Magick::Image but cannot seem to find how to pull the data out of an Image in Magick in order to load it into a Mat. What's the best way to do this? For reference, in reverse: Convert cv::Mat to Magick::Image 回答1: Updated Answer This is the best I can get it, I think! #include <opencv2/opencv.hpp> #include <Magick++.h> #include <iostream> using namespace std; using