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Image processing apparatus, image processing method, and program

An image processing device and an image processing technology, which are applied in the field of image processing methods and programs, and can solve problems such as image quality degradation and blurring.

Inactive Publication Date: 2013-03-13
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a long-time exposure image has a longer exposure time than a short-time exposure image, there are occurrences of blur due to camera shake or movement of a photographed object and occurrence of color loss and fake color for moving objects The problem of degraded image quality caused by

Method used

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  • Image processing apparatus, image processing method, and program
  • Image processing apparatus, image processing method, and program
  • Image processing apparatus, image processing method, and program

Examples

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Embodiment Construction

[0051] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Note that, in this specification and the appended drawings, structural elements that have substantially the same function and structure are denoted with the same reference numerals, and repeated explanation of these structural elements is omitted.

[0052] Preferred embodiments of an image processing apparatus, an image processing method, and a program according to embodiments of the present disclosure will now be described with reference to the drawings in the order indicated below.

[0053] 1. Outline of high dynamic range image generation processing

[0054] 2. Example of the process of deciding the mixing coefficient β in the process according to the embodiment of the present disclosure

[0055] 3. Example configuration of image processing equipment

[0056] 4. Example of exposure control configuration for image capturing element

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Abstract

An image processing apparatus includes: an exposure compensation unit carrying out exposure compensation of a long exposure image and a short exposure image in keeping with an exposure ratio; a blur information measuring unit using the exposure-compensated images to calculate blur information showing a degree of discrepancy between pixel values at a corresponding pixel position in the long exposure image and the short exposure image; a blending coefficient calculating unit using the blur information to decide a blending coefficient to be used in a blending process on pixel values at the corresponding pixel position in the long exposure image and the short exposure image; and a blending unit carrying out the blending process on the pixel values at the corresponding pixel position in the long exposure image and the short exposure image using the calculated blending coefficient to decide the pixel value of an output image.

Description

technical field [0001] The present disclosure relates to an image processing apparatus, an image processing method, and a program. Specifically, the present disclosure relates to an image processing apparatus, an image processing method, and a program that generate an image having a high dynamic range (wide dynamic range). Background technique [0002] A solid-state image pickup device such as a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor used in a video camera or a digital camera works by accumulating electric charges corresponding to the amount of incident light and outputting an electric charge corresponding to the accumulated amount of light. The electric signal corresponding to the electric charge to perform photoelectric conversion. However, there is a limit to the amount of electric charge that can be accumulated in the photoelectric conversion element, so that when a certain amount of light has been recei...

Claims

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Application Information

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IPC IPC(8): H04N5/235H04N9/04
CPCH04N5/2351G06T5/50G06T2207/10144G06T2207/20208H04N23/6811H04N23/683H04N25/583H04N25/589G06T5/73G06T5/90
Inventor 城坚诚
Owner SONY CORP
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