AIIM MS50-1994 Recommended Practice - Monitoring Image Quality of Aperture Card Film Image Scanners《推荐实施规程-孔隙卡胶片图像扫描器的监测图像质量》.pdf
《AIIM MS50-1994 Recommended Practice - Monitoring Image Quality of Aperture Card Film Image Scanners《推荐实施规程-孔隙卡胶片图像扫描器的监测图像质量》.pdf》由会员分享,可在线阅读,更多相关《AIIM MS50-1994 Recommended Practice - Monitoring Image Quality of Aperture Card Film Image Scanners《推荐实施规程-孔隙卡胶片图像扫描器的监测图像质量》.pdf(34页珍藏版)》请在麦多课文档分享上搜索。
1、 AIIM MS50 94 m 1012348 0500579 TOb = ANSVAIIM MS50-1994 Standard Association for Information and Image Management 1100 Wayne Avenue, Suite 1100 Silver Spring, MD 2091 0-5603 Telephone 301/587-8202 Approved As Julv 11, 1994 AIIM US50 4 m 1012348 0500580 728 m AIIM Catalog No. MS50 O 1994 by the Asso
2、ciation for Information and Image Management 1100 Wayne Avenue, Suite 1100 Silver Spring, MD 20910-5603 USA Telephone: 30 1/587-8202 Fax: 301/587-2711 Printed in the United States of America ISBN:0-89258-285-5 AIIM MS50 94 M LOI12348 0500583 664 ANWAIIM MS50-1994 Standard for Information and Image M
3、anagement - Standard Recommended Practice - Monitoring Image Quality of Aperture Card Film Image Scanners Association for Information and Image Management Abstract This standard recommended practice specifies procedures for quality control of images produced when aperture cards are scanned. AIIM MS5
4、0 94 m 3032348 0500582 5TO m Contents Foreword i Scope and purpose . 1 Normative references 1 Definitions . 1 Principles of image quality control . 2 Procedures for test run . 4 Target 1 : Alignment target . 5 Target 2: Resolution target . 8 Target 3: Line target . 8 Frequency of testing 4 10 11 Tar
5、get 5: Typical engineering drawing . 9 Annexes A B (Informative) Target manufacturers Target 4: Focus target . 8 (Informative) Scanner test results log . 14 details . 15 B-1 Drawing: Aperture card 15 B-2 Drawing: Frame size and image alignment target (A-size) landscape . 16 B-3 Drawing: Frame size a
6、nd image alignment target (A-size) portrait . 17 B-4 Drawing: Frame size and image alignment target detail . 18 B-5 Drawing: Pestrecov star pattern and wedges . 19 B-6 Drawing: Pestrecov star pattern and wedges detail . 20 B-7 Drawing: Pestrecov star pattern and wedges details 2 and 3 21 B-9 Drawing
7、: Line width test detail 23 B-11 Drawing: Focus check target detail 25 C- 1 Drawing: Threshold target specification 27 B-8 Drawing Line width test (A-size) . 22 B-10 Drawing: Focus check target 24 (Informative) Threshold target 26 C Figures 1 2 3 4 5 6 Test run log . 3 Test target 1: Frame size and
8、image alignment target 6 Test Target No. 2: Pestrecov star pattern and wedges 10 Test Target No. 3: Line widths . 11 Test Target No. 4: Focus check . 12 Test Target No. 5: Typical engineering drawing . 13 Foreword (This foreword is not part of American National Standard for Information and Image Man
9、- agement, ANSUAIIM MS50-1994 - Standard Rec- ommended Practice for Monitoring Image Quality of Aperture Card Film Image Scanners.) This standard recommended practice addresses proce- dures for establishing the quality control of electronic images that are produced when aperture cards are scanned. I
10、t contains three informative annexes (A, B, and C), which are not to be considered part of this standard. Annex A (Scanner test results log) is a log sheet to be used to document various aspects of the quality control program. Annex B (Target manufac- turers details) contains eleven drawings (B- 1 t
11、hrough B-11) of the aperture card, frame size, and image alignment (A-size, both landscape and portrait), and other aspects of the aperture card test images. This annex provides additional information about Test Tar- gets Numbers 1, 2, 3, 4, and 5. Annex C (Threshold target) contains a description o
12、f a target that can be used to check scanner thresholding. The targets pro- vided in these annexes are for informational purposes only. These targets are available through commercial sources. 1 This standard recommended practice is only directed toward successful calibration of the scanner. The ulti
13、- mate users image requirements are dependent upon the scanner and other system components, such as printers and monitors. The systems operator must establish and maintain similar procedures for each of the system components that affect the output image. Every scanner, including replacement scanners
14、, must be calibrated. Some scanners have automatic image enhancement features; therefore it may be necessary to establish quality references to represent image enhanced output. Test Target Numbers 1, 2, 3, 4, and 5, which are referred to in this standard, are aperture cards. The thresholding target,
15、 also an aperture card, is described in Annex C, an informative annex, which is not a part of this standard. Members of the AIIM C13 Elec- tronic Imaging Standards Committee and the AIIM C 13.1 Electronic ImaginglAperture Card Scanning Committee acknowledge the efforts of Applied Image, Inc. of Roch
16、ester, New York, for the technical development of the targets. Following are descrip- tions of the targets. Test Target No. 1: Frame size and image alignment target Seven aperture cards - A size and B size: 16X reduction ratio (four aperture cards, both land- scape and portrait) - C size: 16X reduct
17、ion ratio (one aperture card, landscape) 1.Obtaining the test targets: Contact the Associa- tion for Information and Image Management (AIIM), Publications Sales, 1100 Wayne Avenue, Suite 1100, Silver Spring, Maryland 20910; (301) 587-8202; fax (301) 587-2711. i AIIM MS50 94 = LO12348 0500583 437 - D
18、 size: 24X reduction ratio (one - E size: 30X reduction ratio (one aperture card, landscape) aperture card, landscape) Test Target No. 2: Pestrecov star pattern and wedges One aperture card - Pestrecov star pattern and wedges Test Target No. 3: Line widths Five aperture cards -A, B, C, D, and E size
19、 Test Target No. 4: Focus check One aperture card Test Target No. 5: Typical engineering drawing One aperture card Threshold Target One aperture card Suggestions for improvement to this standard are wel- come. They should be sent to the Chair, AIIM Stan- dards Board, Association for Information and
20、Image Management, 1100 Wayne Avenue, Silver Spring, At the time it approved this standard recommended practice, the MIM Standards Board had the following members: Name of Representative Organization Represented MD 20910-5603. Marilyn E. Courtot, Avi Bender Thomas C. Bagg Chair Jewel M. Drass John C.
21、 Gale Bmce A. Holroyd Charles A. Plesums George Thoma Stephen Urban Eileen Usovicz Herbert J. White Association for Information and Image Management CONTEL Federal Systems National Institute of Standards and Technology Bell (2) Distortion of an image on a raster scan display caused when the detail o
22、f an image exceeds the resolution of the cathode ray tube (CRT); (3) Image defects generally caused by elements of a scanned image being smaller or not registered with the picture element. 3.2 Halftone: Technique of reproducing continuous- tone illustrations by photographing the image through an etc
23、hed screen. NOTE: The finer the screen (mea- sured in lines per inch or millimeter), the higher the quality of the resulting negative. 3.3 Image scanner: For the purpose of this docu- ment, a scanner or image scanner is a device that elec- tronically captures data from an aperture card in a ras- ter
24、 pattern and creates a digital file of the monochrome image of the document. Also see scan- ner, 3.9. 3.4 Moire: An image defect caused by interference of one pattern with another, which shows as a beat frequency between the two patterns. 3.5 Point: Also printers point. Measure of type size in graph
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