User Guide

User Guide Neat Image
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20-Nov-03
10.2. Images to fine-tune a device noise profile
In this subsection, you can find examples of image areas to be used for fine-tuning analysis in the noise
profile equalizer:
10.2.1. Large size areas
In image areas larger than 100x100 pixels, high, medium and low frequencies are taken into account.
The examples are essentially the same as in the case of building a device noise profile. See examples in
subsection 10.1, page 40.
10.2.2. Medium size areas
In image areas larger than 60x60 pixels but less then 100x100 pixels, high and medium frequencies are
taken into account:
– GOOD, because this area contains no important details
– BAD, because there are medium frequency details (a vertical stroke)
– UNACCEPTABLE, because there are many medium frequency details
(horizontal strokes)
10.2.3. Small size areas
In image areas larger than 30x30 pixels but less then 60x60 pixels, only high frequencies are taken into
account:
– GOOD, although this area contains low frequency details, they are not taken
into account because the area is small
– BAD, because this area contains high frequency details
(a vertical stroke)
– UNACCEPTABLE, because this area contains various details
See more examples
of fine-tuning device noise profiles on the Neat Image web page.