Method for automatic identifying scanning area
A scanning area and automatic identification technology, which is applied in the field of identifying the range of objects to be scanned, can solve the problems that users are not easy to frame, cannot correctly frame the scanning area 15, and cannot correctly frame irregular images, etc.
Inactive Publication Date: 2003-03-26
UMAX DATA SYST
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Problems solved by technology
Since the known technology can only allow the user to manually select the four vertices (upper right, lower right, upper left and lower left) of the image to be processed to obtain a square scanning area 15, it may be as follows Figure 1E As shown, the user cannot correctly select the desired scanning area 15, but must additionally select a lot of surrounding blank areas; it may also be as follows Figure 1F As shown, the user cannot correctly prevent the scanning area 15 from including adjacent objects that do not need to be scanned, so that the user must additionally select the desired image in the subsequent image processing procedure
Moreover, although an image processing program is usually performed after scanning the overscanned area 195, in the image processing program, the user selects the required range by manual frame, so the user also faces the problem of not being able to frame correctly. Difficulty in selecting desired irregular images
[0005] In short, the known scanner operation process will display the area corresponding to the entire scanned document in the preview screen, making it difficult for the user to correctly select the area to be scanned, especially when the user wants to scan an irregular pattern When one of the adjacent patterns is to be scanned
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[0015] after analysis Figure 1A to Figure 1F It can be seen that since the preview screen of the known technology displays the image of the entire file and the images of each object are not separated, the user can only select the range containing the image to be processed when selecting the area, and cannot accurately Only frame the images to be processed.
[0016] For this reason, the present invention proposes a method that can solve the defects of the known technology: if any object in the preview screen has been surrounded by a restricted area whose outline and position are exactly the same as the outline and position of the object, or there is only the image of the object is displayed, so that the area to be scanned selected by the user is limited to the limited area, or is limited to the image of the object. Since the part outside the restricted area or the object image is not regarded as the area to be scanned, the user can easily select the desired scanning area. Yo...
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The invention includes following steps. The document containing an object on it is recognized, and the position as well as the contour of the object is affirmed. The preview of the document is displayed. The contour and the position of the restrictive area in the preview are just the contour and the position of the object. The area selected with the frame by the user in the preview is received. Thus, the part of the area selected with the frame located outside the restrictive area will be removed automatically so as to make the area selected by the frame convert to the scan area. Then, the scan area is scanned.
Description
technical field [0001] The present invention relates to a method for limiting a frame selection area (or scanning area) selected by a user within the range of an object to be scanned, and in particular to a method for using software to identify the range of the object to be scanned. technical background [0002] In the known technology, the basic operation process of the scanner (scanner), such as Figure 1A Shown in the step boxes 11, 12, 13 and 14, it includes at least the following basic steps: place the document to be scanned on the scanner to scan the entire document, display the preview (preview) screen of the document, and the user selects the document in the preview frame Select the scanning area to be scanned and the scanning area selected by the scanning user. Of course, usually the resolution (dpi) used when scanning the scanning area is higher than the resolution used when scanning the entire document, because the former only allows the user to select the desired...
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Inventor 黄文泳
Owner UMAX DATA SYST