Open Source Photography: Welcome! JD Smith: Code - Exposure Blend. Exposure-blend: A GIMP plug-in for contrast blending 3 bracketed images. Download: The Problem Many typical photographic scenes contain far more dynamic range than modern digital cameras can record in a single exposure. Digital cameras are actually slightly worse in this respect than film cameras, since they are very unforgiving to the slightest over-exposure.
Bracketing Techniques To help overcome this limitation, you can bracket the shot using multiple exposures. A simpler method is available in contrast blending in which image data from multiple exposures are linearly combined to recover shadows and highlights. I wanted an easy to use but flexible tool which works with the GIMP, a free and powerful image manipulation program -- hence exposure-blend. Exposure-blend is similar in spirit (though different in technique) to Erik Krause's Contrast Blending PhotoShop Actions. Background Features Shooting Installation First install the GIMP, at least version 2.2.
Main Dialog Loading images Options Dark. Enable your Wacom Intous/Graphire Tablet with Pressure Se. Hugin - Panorama photo stitcher. School Of Stock | PhotoShelter. Beginning GIMP: From Novice to Professional. Images from Beginning GIMP. Beginning GIMP: From Novice to Professional ... by Akkana Peck A number of people have written to ask me for the images used in the book ... here they are, in the order in which they appear. The second edition images are here (please let me know if there's anything you want to see that I haven't put on the page). But if you want the whole collection to work with, I recommend downloading the "Source Images" zip file from the Apress page for the second edition. Except as otherwise noted, these images are licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.
That means you're free to use them for anything noncommercial. If you want to use any of the images for a commercial work, please write me and ask first. If you use them on a web page, I'd appreciate it if you'd let me know and include a link back to this site. Chapter 1 Wilber goes to Chaco Canyon. Chapter 2 Chapter 3 Chapter 4 Palo Alto Baylands, Canyonlands, and the XCF of the tree. Chapter 5. GREYCstoration. Wavelet denoise. The wavelet denoise plugin is a tool to reduce noise in each channel of an image separately. The default colour space to do denoising is YCbCr which has the advantage that chroma noise can be reduced without affecting image details. Denoising in CIELAB (L*a*b*) or RGB is available as an option. The user interface allows colour mode and preview channel selection. The denoising threshold can be set for each colour channel independently. Features User interface with preview is available.Amount of denoising for each channel is selectable.Possibility to denoise YCbCr or CIELAB channels instead of RGB exists.Noise profiling is done.Conversion from RGB to YCbCr and RGB to CIELAB is lossless.Preview is capable of displaying one single channel only if desired.Processing time is reasonably fast (around 20 seconds for a 10 Megapixel image) and independent from the amount of denoising applied.User interface in multiple languages is available.
Details Example The goal is not to reduce all noise. License.