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Image processor, image processing method and recording medium recording the same

An image processing device and image processing technology, applied in image data processing, image communication, graphics and image conversion, etc., can solve the problems of inability to accurately extract the outer edge of the original, wrong results, etc., and achieve improved tilt correction performance and high-speed tilt correction. , the effect of eliminating error factors

Inactive Publication Date: 2003-10-15
SHARP KK
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for originals in which images exist at the edges or whose borders are completely black (these cases also often appear in comic books), the outer edges of the original cannot be accurately extracted, and the corrected result may be erroneous
[0012] As mentioned above, these techniques cannot perform skew correction with high precision when applied to comic books

Method used

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  • Image processor, image processing method and recording medium recording the same
  • Image processor, image processing method and recording medium recording the same
  • Image processor, image processing method and recording medium recording the same

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Embodiment Construction

[0071] Hereinafter, the embodiment of the present invention will be described by taking a general comic strip image as an example.

[0072] figure 1 is a schematic diagram showing a comic strip image 1 which has been input and which is black in the outer part of the document. Such as figure 1 As shown, the comic strip image 1 includes: a cut-off portion (a portion in which a figure exists up to the edge of the original) 1a; a black outer edge portion 1b of the original; and a frame line 1c drawn obliquely on purpose. However, most of the frame lines drawn near the periphery of the original extend in the horizontal direction parallel to the upper and lower sides of the original, such as frame line 1d, or in the vertical direction parallel to the left and right sides of the original, and a few oblique frames Lines are drawn outside the portion of the graph where they exist. In other words, most of the frame lines drawn near the periphery of the document are lines extending in...

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Abstract

An image processing device extracts edge pixels of an input image, connects the edge pixels and extracts the segment, extracts the angle of inclination of the image on the basis of the segment, corrects the inclination of the image on the basis of the angle, detects the end of the correction when the corrected inclination is not more than a predetermined threshold value, and repeats the inclination extraction, the inclination correction, and the end detection by using the output image after the inclination correction as a new input image till the end is detected.

Description

technical field [0001] The present invention relates to an image processing device for correcting a tilt of input image data, an image processing method, and a recording medium recording the method. Background technique [0002] In the past, during its development, the center of the industry shifted from the hardware industry to the software industry, and it is predicted that it will shift to the contents industry in the 21st century. The latest target of the content industry is electronic books, which have attracted attention in Japan and the world in recent years. Among them, electronic books based on images that can be created at low cost by applying image processing techniques are considered to be promising. Especially in Japan, "comic book" which accounts for half of all paper books in sales is the target of image-based e-books, so image-based e-books will be the center. [0003] Image-based e-books have most of the production process from (1) scanner input, (2) skew ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06T3/60H04N1/387H04N1/40
CPCG06T3/608G06K9/3275H04N1/3878G06V10/243
Inventor 田中秀明
Owner SHARP KK