Image Region Cutout Parameter Switching for Bordered Photographs
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Solution Overview
Problem
Existing image processing technologies fail to accurately extract the original region of a bordered photograph, leading to discarding of image portions due to shade effects, resulting in an incomplete image being obtained by the user.
Innovation Solution
An image processing apparatus with a reading unit, extraction unit, judgment unit, determination unit, and switching unit that adjusts cutout parameters based on the judgment of the original region's inclusive relation, allowing for precise determination of the processing region to exclude shades and retain the desired image area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If processing that takes shade effect into account is carried out, then the original region can be accurately extracted from thick originals, but the image expected by user cannot be obtained for bordered photographs
Solution Approach 1:
The patent applies parameter changes by switching between different cutout parameters based on the type of original detected. When a bordered photograph is detected, the system uses a first cutout parameter that does not account for shade effects, preserving the full image area. When a non-bordered original is detected, the system uses a second cutout parameter that reduces the region inward to account for shade effects. This dynamic parameter switching resolves the contradiction by adapting the processing method to the specific type of original being scanned.
2Manufacturing precision
If a region reduced inward is set to account for shade, then the original region can be accurately captured, but the end portions of the image will be discarded for bordered photographs
Solution Approach 1:
The patent applies local quality by differentiating the processing applied to different regions based on the detected original type. For bordered photographs, the system preserves the full image area including end portions. For non-bordered originals, the system applies inward reduction to account for shade effects. This localized differentiation of processing quality ensures that the appropriate level of region reduction is applied only where necessary, preventing unnecessary loss of image portions.
Data Source
AI summary
There are provided an image processing apparatus, an image processing method, and a storage medium which are capable of obtaining an image expected by a user. To this end, for an original region on an inner side, the original region is set by using a parameter corresponding to the original region on the inner side. For an original region on an outer side including an outer edge, the original region is set by using a parameter corresponding to the original region on the outer side.