Black edge detection method for image picture and image processing device

A technology of an image processing device and a detection method, which is applied in the directions of image communication, components of color TVs, components of TV systems, etc., can solve the problems of unstable black edge detection, undetectable detection, and poor image display quality, etc. Achieve the effect of improving display quality and increasing stability

Inactive Publication Date: 2013-05-01
NOVATEK MICROELECTRONICS CORP
View PDF6 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fixed brightness threshold will cause the black edge detection to be unstable or completely unde...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Black edge detection method for image picture and image processing device
  • Black edge detection method for image picture and image processing device
  • Black edge detection method for image picture and image processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] Figure 1A to Figure 1C An image frame of an embodiment of the present invention is drawn. Please refer to Figure 1A to Figure 1C, in this embodiment, the image screen 100 includes a screen area 110 and a border area 120, wherein the screen area 110 is the image content displayed on the screen when the display is playing the image screen 100, which is what the user wants to watch image frame, and the frame area 120 is a black block surrounding the image area 110 . The frame area 120 of this embodiment can be divided into a plurality of sub-frame areas, such as an upper frame area 120U, a lower frame area 120D, a left frame area 120L, and a right frame area 120R, for example Figure 1B As shown, the sub-frame areas do not overlap each other. Alternatively, the frame area 120 of this embodiment can also be divided into a plurality of partially overlapping sub-frame areas 120U, 120D, 120L, 120R, such as Figure 1C shown.

[0049] figure 2 A schematic block diagram of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a black edge detection method for an image picture. The method comprises the following steps of: calculating the border brightness information of a border area of a current image picture; acquiring the picture brightness information of a picture area of the current image picture; calculating a critical brightness value according to the border brightness information and the picture brightness information; and judging whether a plurality of pixels of the border area are black pixels or not according to the critical brightness value. In addition, the invention also discloses an image processing device.

Description

technical field [0001] The present invention relates to an image detection method and an image processing device, and in particular to a black edge detection method of an image frame and an image processing device using the method. Background technique [0002] In order to achieve the optimal cutting method, the size of the display panel has been developed from the traditional narrower aspect ratio screen to the wide screen trend, and the wide screen screen has narrowed the visual gap between the movie and the display device to some extent. The wide screen makes people have a stronger sense of presence when watching the screen. Taking advantage of the above-mentioned advantages, image signals in wide-screen playback formats will naturally become the mainstream in the future. [0003] However, no matter what aspect ratio image signal is in the playback format, before playing, there is a black border area in the corresponding image frame, so it is necessary for the image proc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N5/14
Inventor 刘玉书陈俊维姜建德汪淳
Owner NOVATEK MICROELECTRONICS CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap