Top "Qimage" questions

A QImage is a class from the Qt toolkit which provides a hardware-independent image representation that allows direct access to the pixel data, and can be used as a paint device.

Qt Image from resource file

I'm trying to insert an image to my program via resource file, which is like: <RCC> <qresource …

qt resources qimage
Convert a QImage to grayscale

I have a QImage and I need to convert it to grayscale, then later paint over that with colors. I …

c++ qt grayscale qimage
Raw data to QImage

I'm new to graphics programming (pixels, images, etc..) I'm trying to convert Raw data to QImage and display it on …

qt qimage
QGraphicsView scrolling and image scaling/cropping

I would like to have a background image in my QGraphicsView that is always scaled (and cropped if necessary) to …

qt scale qgraphicsview qimage qpixmap
How to make a QImage or QPixmap semi-transparent - or why is setAlphaChannel obsolete?

4.7 and like to overlay two images on a qgraphicsview. The image on top shall be semi-transparent to allow to see …

qt4 transparency qpainter qimage
Qt resize image with best quality

Can anyone help me resize an image in qt without making the image pixelated. Here's my code. the result is …

c++ qt image-resizing qimage qpixmap
Qt does not load JPG , just PNG

I work with my colleagues on the same project on Windows 7 64 bit version, Visual Studio 2008. They load JPG and they …

qt png jpeg qimage
how to merge two images into one using QImage and QPainter in qt?

Hi I am developing a blackberry10 app. Inside the app I have two images and I just need to merge …

c++ qt qtgui qpainter qimage
Render QImage with OpenGL

Related to my other question, I think the more central question would be, how you render a QImage with OpenGL? …

c++ qt opengl qimage glteximage2d
Qt: QImage always saves transparent color as black

How do I save a file with transparency to a JPEG file without Qt making the transparent color black? I …

c++ qt transparency qimage