发明名称 |
Control method for microfilm image reader |
摘要 |
There is provided a control method of a microfilm image reader, in which a scanner reads an image in a frame recorded on a microfilm and supplies image data of the read image to a printer, for printing out image data of an original image faithfully in a relatively easy processing even if the original image largely contains middle tone portions, without either calculating a threshold value for binarization by a complicated method or performing a special image processing to be uniquely performed to a binary density image. The scanner reads the image in a multi-tone gradation and the printer prints out image data of at least one portion of the read image in the multi-tone gradation. When the image in a frame contains both a multi-tone gradation portion in a photograph area and a binary density portion in a document area, image data of the photograph area and image data of the document area are printed out in the multi-tone gradation and the binary density or gradation, respectively. If the frames are photographed on the microfilm in a predetermined form or forms, coordinates of the photograph area are previously memorized in each form so that the photograph area can be printed out in the multi-tone gradation automatically.
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申请公布号 |
US5909537(A) |
申请公布日期 |
1999.06.01 |
申请号 |
US19960672113 |
申请日期 |
1996.06.27 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
FURUKAWA, TAKAO;HASHIMOTO, MICHINORI |
分类号 |
H04N1/00;H04N1/387;H04N1/40;H04N1/405;(IPC1-7):H04N1/407;G06K15/12 |
主分类号 |
H04N1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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