Method and device for image processing of multiresolution upsharp masking (USM)

An image processing device and anti-sharpening mask technology, applied in the field of image processing, can solve the problems of enhancing structural organization and failing to fully enhance target objects, so as to avoid enhancing unnecessary structural organization and enhance the effect of target objects

Inactive Publication Date: 2014-09-17
刘远明 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The effect of image enhancement can be achieved by suppressing some frequency band signals and enhancing other frequency band signals, but this enhancement fails to fully enhance the target object on the one hand, and enhances unnecessary structural organization on the other hand

Method used

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  • Method and device for image processing of multiresolution upsharp masking (USM)
  • Method and device for image processing of multiresolution upsharp masking (USM)
  • Method and device for image processing of multiresolution upsharp masking (USM)

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Embodiment Construction

[0025] figure 1 The schematic flow chart of the image processing method of the multi-resolution (Unsharp Masking, USM) unsharp mask provided by the present invention, as figure 1 As shown, the method includes:

[0026] S101. The image processing apparatus determines a multi-resolution parameter according to image attributes of an original image.

[0027] It should be noted that the image processing device is an image processing device with a multi-resolution USM function, and the device side is recorded as a multi-resolution USM image processing device. The image processing device can perform image processing independently, or it can be installed in other devices for processing. image processing device. The multi-resolution USM image processing method proposed by the present invention can be applied to the image enhancement function of digital mammogram images, but it is not limited thereto.

[0028] Further, the image processing device determines the multi-resolution param...

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Abstract

The invention provides a method and device for image processing of multiresolution upsharp masking (USM). The method comprises the steps of determining multiresolution parameters according to image attributes of an original image; resolving the original image into at least two sub-images through wavelet transformation according to the multiresolution parameters; adopting the USM to process the sub-images so as to modify pixel values of frequency of the sub-images; and synthesizing the sub-images after the processing into a reconstructed image through inverse wavelet transformation. A target object can be fully enhanced, and the enhancement of an unnecessary structure organization is avoided.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image processing method and device for a multi-resolution unsharp mask USM. Background technique [0002] In digital mammography, the image visibility of valuable areas for diagnosis, such as an anatomical area of ​​the body, a certain structure in the area, such as microcalcification clusters, masses, etc., is often not clear enough to complete the needs Diagnostic tasks, such as completing pathological testing, etc. [0003] Although the existing technology has developed many different techniques to enhance this kind of target objects that are not clear or not enough to complete the task, including the use of techniques such as noise smoothing to enhance the target object, but these techniques have certain defects, such as not being able to effectively The target object is enhanced, or while the target object is enhanced, other structures that do not need to be enhanced, suc...

Claims

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Application Information

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IPC IPC(8): H04N1/409
Inventor 刘远明钱唯陈迺迪宋晓东
Owner 刘远明
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