The image processing software was very important while creating this CD.
There is nearly unlimited choice of computer programs for work with images
but majority of them are useless for purpose I needed it for.
The reason is the only 8-bit dynamic range of images they are able to process.
It means that the red, green and blue component of each picture element
can be assigned to 2
8=256 different values. This enables to
create 256
3, i.e. about 16 million different colors. It is
enough to achieve the perfect image quality for human eyes but it is
insufficient for numerical image processing especially if the image contrast
is extremely high. Therefore I used the image processing software
using 16-bit dynamic range for my work. It means that the red, green and blue component
of each picture element can be assigned to 2
16=65536 different
values. This enables to create 65536
3, i.e. about 3╫10
14
different colors. The mathematical processing of such high quality image
enables to make visible details originally not visible on an image.
All images published in this CD I have processed using the scientific
image analyzer ACC (Adaptive
Contrast
Control) version 4.0 which is the product
of Czech firm SOFO *. This PC software consists of
a lot of procedures for exact image processing including the unique
ACC algorithm for nonlinear local contrast transformation.
