I'm new in programming a Win32 program. I want to display a tif image in the window, but I only found ways to display bitmap image. Does anyone got idea about how to display a tif image? Thanks.
Use Gdiplus::Bitmap class to load TIFF image. Then, get HBITMAP from it by calling GetHBITMAP.
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I created a delphi component and want to load an image into it at runtime.
So i created a .RC file in notepad.
useIdentifer BITMAP "demo.BMP"
When i compiled the file it gave me an error "invalid bitmap format", so I did some research and got the solution that I had to check that the file is 8-bit, so I converted it to bitmap 256 colors using paint, but due to this i lost the quality and pixels of image.
I'm not sure how can i get rid of the error without losing quality of the image.
Use a PNG image instead of a BMP. The answer to this question will tell you how.
We are currently converting TIFF files to PDF using GraphicsMagick. The TIFF is coming from an eFAX and has a (pixel) resolution of 1728x2200.
If you do the conversion with tiff2pdf or just open it on Preview and convert export it to PDF, it is generated with a MediaBox value of 612x792 point, which is what is expected.
However graphics magick generates a MediaBox of 1728x4400 and a CropBox of 610x792. It all looks good if you open it on a PDF viewer because it's using the CropBox but if you're feeding it to GhostScript after, you don't get the Image on the full page but as a small square inside the document.
The lazy solutions would be to change for Tiff2PDF or add -dUseCropBox to our GhostScript command but I'd like to know what GraphicsMagick option should be used to have the PDF with the good MediaBox. It's like it doesn't understand that the resolution is in Pixels and not in Point. Hope somebody has insights
I am trying to load a small TIFF image using Emgu.CV (2.4.10). The image is a 32bit (float32) single band image, but when loading it using Emgu it opens it as a <Bgra, Single> image.
Is Emgu misinterpreting the image or are there some method to force Emgu to load the image as a <Gray, Single>?
I assume you are trying to read a image from a file. If this is the case you can simply specify the image format and bit depth when declaring the Image.
Image<Gray,Single> myImage = new Image<Gray,Single>("myFile.tiff");
I am trying to just change the resolution of a tiff image using Bit Miracle libtiff. Below is the code snippet. When I do this, tiff image resolution is changed, but the other tiff parameters are gone and I am unable to open the tiff file. Could you please help if I am doing something wrong here?
using (Tiff image = Tiff.Open(fileName, "a"))
{
image.SetField(TiffTag.XRESOLUTION, 200);
image.SetField(TiffTag.YRESOLUTION, 300);
image.WriteDirectory();
}
Please note that changing TiffTag.XRESOLUTION or TiffTag.YRESOLUTION won't change image data and will only change the way the data is interpreted by viewers or printers.
As for the code itself, you should:
Call SetDirectory(0) before calling SetField methods. That's because you open file in append mode.
Use RewriteDirectory instead of WriteDirectory. Otherwise you might corrupt image data.
I want to save my created image as a PNG or JPEG file with the help of GDI+ but i can't find a way to do this. Seems that there is no way to create a non file based Image and fill it with a bitblit from the HBITMAP.
Or do i miss something?
Use the Bitmap::FromHBITMAP() method. Then just Save() it.