Toshiba e-STUDIO453 Service Manual page 153

(2) Image memory editing
This function performs editing such as enlargement/reduction, mirror imaging, etc., by using a line
memory. Pixel data for one line in the primary scanning direction is stored in the line memory and
the memory is renewed at each line.
(a) Enlargement/Reduction
Enlargement/Reduction is accomplished by using the line memory control function in the
process of the image processing operation.
<Example> Enlargement
00%
200%
<Example> Reduction
00%
50%
(b) Mirror imaging
This is accomplished by reading and outputting data from its end.
(3) Editing processing
This function performs trimming and masking.
(a) Trimming
Using rectangular area signals, the image signals inside the rectangular area are left and the
other image signals are eliminated.
(b) Masking
Using rectangular area signals, the image data inside the rectangular area are erased.
(c) Negative/positive reversing
This function reverses the entire date from negative to positive or vice versa.
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IMAGE PROCESSING
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