e-STUDIO200L/202L/203L/230/232/233/280/282/283 © 2004 - 2008 TOSHIBA TEC CORPORATION All rights reservedIMAGE PROCESSING7 - 62) Image memory editingThis function performs editing such as enlargement/reduction, mirror imaging, etc., by using a linememory. Pixel data for one line in the primary scanning direction is stored in the line memory andthe memory is renewed at each line.- Enlargement/ReductionEnlargement/Reduction is accomplished by using the line memory control function in the processof the image processing operation. Enlargement ReductionFig. 7-7- Mirror imagingThis is accomplished by reading and outputting data from its end.3) Editing processingThis function performs trimming and masking.- TrimmingUsing rectangular area signals, the image signals inside the rectangular area are left and theother image signals are eliminated.- MaskingUsing rectangular area signals, the image data inside the rectangular area are erased.- Negative/positive reversingThis function reverses the entire date from negative to positive or vice versa.4) Gamma correctionThis function corrects the input/output characteristics of the scanner/printer and adjusts the imagesignals so that the input/output characteristics would match with the copy mode.5) Gradation processingThis function switches the type of gradation processing depending on the copy mode: A type whichselects the printer characteristics giving the priority to resolution such as for text data, and anotherwhich selects the printer characteristics giving the priority to gradation reproducibility such as forphotographic images.1100%200%2 3 4 5 6 7 8 9 101 1 2 2 3 3 4 4 5 51100%50%2 3 4 5 6 7 8 9 101 3 5 7 9
