ODM also determines the contrast of the object against the sky background, presenting this as the "Log Object Contrast
," or LOC.
NEW - Auto Shading - Similar to Ambient Occlusion, creates realistic shading based on lines and object contrast
within each layer creating stylistic 3D effects
The ratio of image contrast to object contrast
at various angular scales is called the telescope's modulation transfer function, as explained in this department by William Zmek (S&T: July 1993, page 91, and September 1993, page 83).
The HP PhotoSmart C20 digital camera was recognized internationally by German Foto & PC Magazine as the "Test Winner" for its resolution, object contrast
and picture contrast.
Evaluating a telescope's contrast performance is just a matter of plotting the ratio of image contrast to object contrast
for details in a whole range of angular sizes.
Ensuring an object contrasts
well with its background will guarantee it has visual impact.