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Image processing method and related partial point spreading function estimating method

A point spread function and image processing technology, applied in the field of image processing, can solve problems such as being unsuitable for general devices

Inactive Publication Date: 2008-10-22
PRIMAX ELECTRONICS LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method must be matched with a specific lens, and requires a specific circuit to convert the external image to form a specific blurred image, so it is not suitable for general devices.

Method used

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  • Image processing method and related partial point spreading function estimating method
  • Image processing method and related partial point spreading function estimating method
  • Image processing method and related partial point spreading function estimating method

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Embodiment Construction

[0024] Fig. 2 shows a schematic diagram of the image processing method according to the present invention. As shown in FIG. 2 , the blurred image undergoes a contrast adjustment process 201 , a dilation process 203 and an edge detection (Canny) process 205 to obtain an edge map. Then in step 207, a Partial Point Spread Function (Partial Point Spread Function, Partial PSF) is estimated for each edge pixel of the edge map to obtain a plurality of partial PSF estimation results. Then in step 209, the PSF estimation result of the whole image is obtained according to the multiple partial PSF estimation results. In this embodiment, all partial PSF estimation results are averaged to obtain the PSF estimation result, but this is not intended to limit this invention. Next, step 211 may be performed using the PSF estimation result to perform deconvolution on the influence to obtain a restored image. However, the PSF estimation result obtained in step 209 can also be used for other pur...

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Abstract

The present invention discloses an image processing method and a related estimation method for a part of point spread functions. The image processing method comprises the steps of: a. carrying out edge detection for an image to obtain a plurality of edge pixels of the image; b. carrying out a part of point spread function estimation for each edge pixel of the edge pixels so as to produce a plurality of results of a part of point spread functions; and c. producing a one-point spread function estimation result according to the part of point spread function estimation results so as to process a fuzzy image to form a clear image in the condition that a lens is not moved and the type of the lens is not restricted.

Description

technical field [0001] The invention relates to an image processing method, in particular to an image processing method using a partial point spread function estimation method and the partial point spread function estimation method used therein. Background technique [0002] FIG. 1 shows a schematic diagram of forming a blur image. As shown in Figure 1, a pixel point P will form a blurred image area BP after passing through a lens 101, so the focal length of the device (such as an optical microscope, camera) using the lens 101 must be adjusted so that the pixel point P can form a clear image. pixel. The general way to adjust the focus is mechanical adjustment, that is, to adjust the mechanical structure of the device to obtain an appropriate focus. However, such a method often requires manual adjustment (such as a microscope), so it is quite inconvenient. Moreover, mechanical adjustment is not suitable for modern electronic devices that are getting thinner and thinner. ...

Claims

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Application Information

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IPC IPC(8): H04N5/14
Inventor 周照钦徐家俊郭宗杰周文隆奚正宁
Owner PRIMAX ELECTRONICS LTD
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