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All photographs are copyright ©Jukka Tolonen 1995 . You are free to make links to these images, but you may not make accessible copies of them without my permission. If anybody would like to use these image for a flattering purpose, I can remit the original Photo CD images.
Feedback is highly appreciated:
Most original pictures are Kodachrome slides. I had them transferred to Photo CD format. The maximum resolution is 3074 x 2048 pixels with 16 million colors.
Images you see here are far from the original slide quality. The resolution and image parameters are optimized for a typical computer monitor. I have determined that the gamma of my monitor is 2.0-2.2. The images are first corrected for this (too bad if you have a gamma corrected high-end workstation monitor!). Then the brightness and contrast are set to best overall subjective image quality. These setting certainly are not optimal for all situations, but it's the best I can do.
This gamma measurement image allows you to directly estimate the gamma of your display system. Stand about 6 feet away and decide which column of the image comes closest to having equal brightness in the top and bottom halves. The number under this column is the gamma of your display system. ("Why Do Images Appear Darker on Some Displays?" by Robert W.Berger)
JPEG image compression is used to decrease the size and loading time of the image files. The compression ratio is carefully selected not to show any visible degradation in the images as seen on the monitor. The size of the compressed image file is typically about 15 % of the corresponding bitmapped file.
Experiment with your browser's image settings to get best overall color rendition. "Dithering To Color Cube" usually produces good results, but "Using Closest Color In Color Cube" may be better with some pictures.