JPS6486674A - Image input device - Google Patents

Image input device

Info

Publication number
JPS6486674A
JPS6486674A JP62243520A JP24352087A JPS6486674A JP S6486674 A JPS6486674 A JP S6486674A JP 62243520 A JP62243520 A JP 62243520A JP 24352087 A JP24352087 A JP 24352087A JP S6486674 A JPS6486674 A JP S6486674A
Authority
JP
Japan
Prior art keywords
image
threshold value
gradation
signal
processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62243520A
Other languages
Japanese (ja)
Inventor
Yukio Kaji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PFU Ltd
Original Assignee
PFU Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by PFU Ltd filed Critical PFU Ltd
Priority to JP62243520A priority Critical patent/JPS6486674A/en
Publication of JPS6486674A publication Critical patent/JPS6486674A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To process an image in which a character and a photography are mixed appropriately and in a real time by separating an image signal to four gradation, and sending a selection signal to a selector by judging two gradation, an upper and a lower gradation, as binary image areas, and two intermediate gradation as multilevel image areas. CONSTITUTION:An image on an original is read by a CCD1, and is amplified by an amplifier 2, and is converted to a digital image signal by an A/D converter 3. Meanwhile, a threshold value for a slice processing and the threshold value for a dither processing are inputted to the selector 4, and either the threshold value for the splice processing or the threshold value for the dither processing is selected by the selection signal from an image area discrimination circuit 6. The threshold value for the slice processing or the threshold value for the dither processing selected by the selector 4 is sent to a comparator 5, and is compared with the digital image signal that is the output signal of the A/D converter 3, and is outputted as a binary image signal. In such a way, it is possible to process the image in which the binary image such as the character, etc., and the multilevel image such as the photography, etc., are mixed appropriately and in a real time.
JP62243520A 1987-09-28 1987-09-28 Image input device Pending JPS6486674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62243520A JPS6486674A (en) 1987-09-28 1987-09-28 Image input device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62243520A JPS6486674A (en) 1987-09-28 1987-09-28 Image input device

Publications (1)

Publication Number Publication Date
JPS6486674A true JPS6486674A (en) 1989-03-31

Family

ID=17105126

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62243520A Pending JPS6486674A (en) 1987-09-28 1987-09-28 Image input device

Country Status (1)

Country Link
JP (1) JPS6486674A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144720A (en) * 1991-01-16 1992-09-08 Kato Hatsujo Kaisha, Ltd. Releasable double-hinge device for an automobile console box
US5210906A (en) * 1990-12-14 1993-05-18 Kato Hatsujo Kaisha, Ltd. Releasable double-hinge device for an automobile console box

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210906A (en) * 1990-12-14 1993-05-18 Kato Hatsujo Kaisha, Ltd. Releasable double-hinge device for an automobile console box
US5144720A (en) * 1991-01-16 1992-09-08 Kato Hatsujo Kaisha, Ltd. Releasable double-hinge device for an automobile console box

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