Image distortion correcting method and device
AssigneeMtekvision Co., Ltd.
InventorChul-Lae Cho
Life of this patent
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Abstract
Device and method of correcting a distortion occurring at the time of displaying a high-resolution image on a low-resolution display unit are provided. The image distortion correcting method includes the steps of: analyzing color levels of all pixels of an input original image; determining a variation of the color levels depending on positions of the pixels; adjusting the variation of the color levels in a region where the variation departs from a predetermined threshold value; correcting the color levels of the pixels in accordance with the adjusted variation; and outputting the corrected image. Accordingly, it is possible to correct the image distortion occurring at the time of displaying an image input from an image sensor on a display module.
Claims8
An image distortion correcting method comprising:
- analyzing color levels of all pixels of an input original image;
- determining a variation of the color levels depending on positions of the pixels;
- adjusting the variation of the color levels in a region where the variation departs from a predetermined threshold value;
- correcting the color levels of the pixels in accordance with the adjusted variation;
- and
- outputting the corrected image,
- wherein the adjusting of the variation of the color levels includes adjusting the variation of the color levels only when the variations of the color levels of red, green, and blue are equal or similar to each other.
A recording medium having recorded thereon a computer-readable program allowing a computer to execute an image distortion correcting method comprising:
- analyzing color levels of all pixels of an input original image;
- determining a variation of the color levels depending on positions of the pixels;
- adjusting the variation of the color levels in a region where the variation departs from a predetermined threshold value;
- correcting the color levels of the pixels in accordance with the adjusted variation;
- and
- outputting the corrected image,
- wherein the adjusting of the variation of the color levels includes adjusting the variation of the color levels only when the variations of the color levels of red, green, and blue are equal or similar to each other.
An image distortion correcting device comprising:
- a color analyzing section analyzing color levels of all pixels of an input original image;
- a variation determining section determining a variation of the color levels depending on positions of the pixels;
- a variation adjusting section adjusting the variation of the color levels in a region where the variation departs from a predetermined threshold value, wherein the variation adjusting section adjusts the variation of the color levels only when the variations of the color levels of red, green, and blue are equal or similar to each other;
- and
- a correcting section correcting the color levels of the pixels in accordance with the adjusted variation.
Dependencies are inferred from the claim text.