COPYRIGHT © 2001 CANON INC. CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON) 3-473. OPERATION AND TIMINGIn reality, however, filters tend to pass light ofvarious wavelengths. In the case of the G filter,excess B and R components are present while theG component is not always adequate.In this block, excess image components areremoved from the RGB image signals and theshortage is compensated for so as to bring thecharacteristics closer to the ideal characteristics.Figure 3-319f. Image CompositionIn this block, two units of image data (RGBsignals) read by the scanner are integrated. Suchintegration may be any of the following; for details,see the User’s Manual:• Patch integration• Full integration• Area integrationFigure 3-320In the case of full integration, image A, whichhas been read by the scanner first, is stored in theimage memory first and integrated with image B,which has been read next. If image A is used asthe background and image A is specified as thearea, image A, which has been read first, is storedin the image memory on the IP memory PCB andprocessed on the ED board by the area data fromthe control panel/editor and then integrated withimage B.Figure 3-321Degree of transmission by filter500400 600 700100%B G RExcess B componentG component (shortage)Excess R componentImage integrationImage from scannerImage memoryR,G,B R,G,BR,G,BImage AImage BImages A + BIP memory PCBImage processor PCBImage integrationImage from scannerReproductionratio/reduction processingR,G,BR,G,BR,G,BR,G,BImage AImage BImages A + BArea dataControl panel/editorIP memory PCBED boardImage processor PCBImage memory
