between the darkest and lightest image details and
display can reproduce.
Optimizing Gray Scale: Adjusting gray scale
means the display properly reproduces the color of
white at D6500 degrees Kelvin. This is done by
adjusting the ratio between the Red, Green, and
Blue (RGB) pixel levels. All colors reference this
"white point" so it is critical it be set accurately.
Optimizing the Gamma Curves: This defines how
much light the RGB pixels emit for any given
brightness level. This setting is important to get the
detail in the shadows.
Optimizing Color-Space and Reproduction:
This is directly linked to the gray scale optimizing.
Flat Field Uniformity: The projector displays a
pure white image from a white test pattern, free of
any blotches or colors that alter the image.
Fundamentally, ISF calibration is the process of optimizing the projector or the flat panel display to reproduce the information from video and data sources (DVD, HD, Satellite, PC, etc) in a manner that closely approximates the quality and dynamic range experienced in a 35MM film theater. Seeking the "holy grail" of film performance and dynamic range, calibration involves color, contrast, and detail along with the environment but avoiding the image jitter ans "artifacting" of the film experience. The main element of calibration are: