HDR tutorials archive
HDR and Capturing Photos for HDR Processing
High Dynamic Range images are a fairly recent subject matter. It is fair to say that HDR should be an area of Photography all to itself. In case you, the reader are not familiar with HDR, I will be sure to give a recap.
HDR in Photoshop CS2
For anybody not a secret, that digital cameras have limited enough range of tones. Frequently in one picture happens it is impossible to embody a full detailed picture with the expressed oscillations of light and dark tones.
Technology High Dynamic Range Image (HDRI) this image with the expanded dynamic range due to transition from integer definition of luminance of pixel to material. That is the image is described by real physical sizes of luminance and color.
How to remove pedestrians and cars: very simply - it is necessary to make on some series of frames with bracketing, and then in files with identical luminance to cut out from everyone sites where there are no pedestrians and cars (the similar principle is used at splice of panoramas).
As for formation HDRi - images with worked both colors and shadows very big range of luminances is necessary to us, to receive a normal initial material for once it will not turn out. In this case to us will help automatic bracketing (AEB).
- Friday, March 9th, 2007