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PTM 2-18
B070/B071
2.3.3 IMAGE PROCESSING FLOW
Image processing is done by the IPU (Image Processing Unit), following the steps
shown below.
Overall image processing for this machine is designed to:
•
Target edges with filters to improve the angles of text characters and reduce the
occurrence of moiré filled areas.
•
Improve the evenness of granular areas in images
Shading Correction
Corrects the dispersion of the scanning
lens and CCD.
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Gamma Correction
Background erase
Ð
Pre-Filter
Reduces the occurrence of moiré.
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Main Scan Magnification
Ð
Auto Select
Determines if an image is text or raster
image data and processes the data
accordingly.
Selects the best methods for Filtering,
Density Control, and Grayscale
Processing.
Ð
Filtering
MTF and smoothing (MTF filter of
previous machines)
Ð
Either of two filters is selected by Auto
Select above.
Independent Dot Erase
Removes isolated pixels.
Ð
Line Width Correction
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Density Control
Employs one of two gamma tables,
selected by Auto Select above
Ð
Grayscale Processing
Error diffusion, dithering, or binary picture
processing
Black-and-white digitization or dithering is
selected by “Auto Select above.
Ð
Video Path
ÍÎ
Application (printer)
Ð
LD Unit
Summary of Contents for e-studio 1050
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Page 12: ...SECTION 1 OVERALL INFORMATION ...
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Page 24: ...SECTION 2 DETAILED DESCRIPTIONS ...
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Page 44: ...PTM 2 19 B070 B071 ...
Page 115: ...SECTION 3 SERVICE TABLES ...
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Page 123: ...SECTION 4 INSTALLATION ...
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Page 132: ...SECTION 5 LARGE CAPACITY TRAY ...
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Page 148: ...SECTION 6 SR860 BOOKLET FINISHER ...
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Page 174: ...SECTION 7 3 000 SHEET FINISHER MJ 1026 ...
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Page 203: ...SECTION 8 COVER INTERPOSER TRAY MJ 7002 ...
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Page 213: ...SECTION 9 MULTI BYPASS TRAY MY 1024 ...
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