Legacy ImageMagick Discussions Archive

Hello again. This is the solution that I came up with: int bitmapToMagick(BITMAPINFOHEADER* bmiHeader, char* pixels, size_t length, Magick::Image* Image) { try { Image->read(bmiHeader->biWidth, abs(bmiHeader->biHeight), "BGR", Magick::CharPixel, pixels); Image->flip(); } catch (...) { retu...

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What are you trying to do exactly?

To crop, use the Crop command in Magick++:

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Hello, ( Here is a similar topic I posted back earlier (and found a solution to). ) For a DirectShow application, I want to transfer a BITMAP image info a Magick::Image. Basically, I have a BITMAPINFOHEADER and a BYTE* buffer pointing to the pixel data of the bitmap described by the BITMAPINFOHEADER...

Or, you can use _getcwd: http://msdn.microsoft.com/en-us/library ... 80%29.aspx
Maybe ImageMagick uses this internally?

that's kind of disappointing, but thanks again for the response!

Thanks, that works. But it costs a lot of efficiency, which is kind of important for my case.

I meant above that Magick++ should only need access to 1 image at a time, right? So, is there some container I can use that frees memory as each elements is accessed? Or, would this mess up writeImages()?

Hi, I am storing images in my own image format and converting them to magick++ for file/save operations. When I use writeImages() on lets say 7 images, I have to store 7 times as much pixel data in memory into a STL container in order to call writeImages(). Even though magick++ is reference counted,...

Thanks. Took me a while to find this by searching. If you are trying to write multi-page TIFF files, just do this: vector<Magick::Image> frames; Magick::Image img1("D:/img.bmp"), img2 ("D:/leaves.jpg"); img1.compressType(MagickLib::JPEGCompression); img1.quality(20); //set JPEG c...

Thanks so much guys. I figured out the problem! I think I did pointer arithmetic wrong. I was also not taking into account the RGBQUAD structures. Here is the new function. Hope it helps future searches out: int handleToImage(HANDLE bitmap, MYIMAGE &image) const { //Get the header of the bitmap ...

Hi guys, I am still totally confused on this. First, I define this function: unsigned char *LoadBitmapFile(char *filename, BITMAPINFOHEADER *bitmapInfoHeader) { FILE *filePtr; //our file pointer BITMAPFILEHEADER bitmapFileHeader; //our bitmap file header unsigned char *bitmapImage; //store image dat...

Hi, in case it helps, to display images while debugging, I have: 1. Compress them losslessly to a temporary .tif file 2. Open this file in Windows Paint using system("mspaint ~temp.tif") 3. Delete the file from the hard drive This has worked nicely for me. Note that the program is paused u...

bilevel is just binary. Pure black and white, no colors saved in the file. I tried this, but all pixels become white! //Set the image type to bilevel (black-and-white, 1 bit per pixel) magickImage.type(MagickLib::BilevelType); //The current pixel in 'magickImage' MagickLib::PixelPacket* curMagickPi...

Thanks for the information about the storage and the link, but why does my code above not work with BilevelType?