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Method for removing watermarks of photos based on color detection and fast matching method

A matching method and watermarking technology, which is applied in the field of image processing, can solve problems such as low efficiency, misprinting, and failure to consider the particularity of photo watermarking, etc., and achieve high efficiency and strong adaptability

Active Publication Date: 2012-06-27
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

[0004] However, these repair methods do not take into account the particularity of the photo watermark in terms of color and position, and it is still necessary to manually select the watermark area to remove the watermark, which is inefficient and may cause false erasure

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  • Method for removing watermarks of photos based on color detection and fast matching method
  • Method for removing watermarks of photos based on color detection and fast matching method
  • Method for removing watermarks of photos based on color detection and fast matching method

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0022] It should be pointed out that the described embodiments are only intended to facilitate the understanding of the present invention, rather than limiting it in any way.

[0023] The invention automatically detects the color of the photo watermark, identifies the watermark area, and then removes the photo watermark through a fast matching method, which has high precision and robustness. The flowchart of the method of the present invention is as figure 1 Shown: First, read the photo; then, identify the watermark area of ​​the photo according to the position and color of the photo watermark; finally, use the fast matching method to remove the watermark of the photo. Describe the concrete steps of the method of the pre...

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Abstract

The invention discloses a method for removing watermarks of photos automatically. The method comprises the following steps of: step S1, reading the photos; step S2, automatically recognizing watermark areas according to the positions of the preset watermarks in the photos and color thresholds of the watermarks, and obtaining watermark edge information; and step S3, using a fast matching method to remove the recognized watermarks. The method can be used for removing the watermarks of the photos automatically, quickly and robustly and has the advantages of strong adaptability and high efficiency.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a photo watermark removal method based on color detection and fast matching. Background technique [0002] Removing photo watermark is a very practical technique. At present, due to the popularity of digital cameras and smart phones, a large number of digital photos have begun to gradually replace traditional photos. However, due to the setting problems of some digital cameras and smart phones, or the carelessness of operators, there are various watermarks in the photos taken, which seriously affect the beauty of the photos. [0003] The traditional watermark removal method is to use the image restoration method, which can treat the photo watermark as the part that needs to be repaired in the photo. Commonly used image restoration methods include texture synthesis methods based on samples and digital image restoration methods based on partial differential equations of ...

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Application Information

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IPC IPC(8): G06T1/00
Inventor 杨鑫王欣刚
Owner INST OF AUTOMATION CHINESE ACAD OF SCI