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| EzGrader FAQ ( Frequently Asked Questions ) |
Why does the grading not work all the time or I get odd results ?
EzGrader need quality images to give
you good results. You need images with HIGH contrast so that
the software can determine where the
perforations/edge starts. We suggest that all your scans of
stamps be on a BLACK
background. This contrasts nicely with the white perforations of most stamps.
We suggest you scan your stamps at
300
dpi at 100 % of actual size. DO NOT ENLARGE
or REDUCE
the image.
My perforation measurements are all wrong. Why?
EzGrader needs
to know the resolution of your stamp images ( DPI ). Most images do not
have that
information
embedded in them, so YOU must give EzGrader the DPI. If your stamp was
scanned at
150 dpi &
you told Ezgrader that the DPI was 300, then the results will be out by
a factor of 2 .
Another cause
of perforation errors are BLIND PERFS ( where the perforations have not
separated
from the stamp
properly ) and paper particles obscuring the perf holes. EzGrader need
to "see" the
perfs to measure
them. CLEAN IMAGES ARE A MUST for
good results.
Please see the
manual for more details!