Image Processing Apparatus Using Page Pixel Average for Single-Pass Background Removal
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Solution Overview
Problem
Electronic pictures and scanned images often contain defects such as unwanted background data and suboptimal foreground data quality, which do not meet user expectations, necessitating improved image processing techniques to enhance output quality.
Innovation Solution
An image processing method and apparatus that acquire image data, calculate a page pixel average value, and adjust pixel values using image processing parameters to distinguish and correct background and foreground data, thereby improving image quality by removing unwanted background content and enhancing foreground data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional image processing methods are used to remove background data, then background removal may be achieved, but loop iterations are required which increase operation time and may cause content loss
Solution Approach 1:
The patent calculates a page pixel average value before the main processing loop, and uses this pre-calculated value to determine processing thresholds. This preliminary calculation allows the main processing to proceed without iterative adjustments, eliminating the need for loop iterations and reducing operation time while maintaining image quality.
2Manufacturing precision
If conventional image processing methods are used to enhance foreground data, then foreground enhancement may be achieved, but the process requires loop iterations that increase operation time
Solution Approach 1:
The patent pre-calculates the page pixel average value and uses it to establish processing thresholds before the main processing loop. This allows foreground enhancement to be performed in a single pass without iterative adjustments, improving processing efficiency while maintaining high foreground data quality.
3Reliability
If conventional image processing methods are used, then image processing may be performed, but the process requires loop iterations that increase complexity and operation time
Solution Approach 1:
The patent calculates the page pixel average value and determines processing thresholds in advance, before the main processing loop. This preliminary setup simplifies the main processing to a single-pass operation, reducing processing complexity and operation time while maintaining reliable processing results.
Data Source
AI summary
An image processing method is provided. The method includes acquiring image data; obtaining a page pixel average value of the image data; acquiring image processing parameters based on the page pixel average value; obtaining a pixel processing threshold by a calculation based on at least a first portion of the image processing parameters; based on the pixel processing threshold, adjusting a pixel value of a current pixel of the image data by using at least a second portion of the image processing parameters; and outputting an adjusted image according to the adjusted pixel value of the current pixel of the image data.