将图像转换成OpenCV的彩色铅笔素描 [英] convert an image into color pencil sketch in OpenCV

问题描述

我想将图像转换为使用OpenCV的彩色铅笔素描。我已阅读页面<一个href=\"http://stackoverflow.com/questions/5675151/i-want-to-convert-an-image-into-pencil-sketch-in-opencv\">I希望将图像转换成OpenCV的素描
即我谋.The效果就像 http://www.showandtell-graphics.com/photosketch.html
我使用的颜色躲闪code

I want to convert an image to a color pencil sketch using OpenCV. And I have read the page I want to convert an image into pencil sketch in OpenCV .The effect which I seek is like http://www.showandtell-graphics.com/photosketch.html I used the color dodge by code

b_d = (b_2==255? 255: min(255, b_1*255 /(255- b_2)));        
g_d = (g_2==255? 255: min(255, g_1 *255/(255- g_2)));             
r_d = (r_2 ==255? 255: min(255, r_1 *255/(255- r_2)));  

看来工作不是很顺利。
请帮助。

It seems work not very well. PLS help.

推荐答案

整体过程在你给我们的链接详细的，所以你需要3图像来达到这种效果。

The overall procedure is detailed in the link you gave us, so you need 3 images to achieve this effect.

请与原始图像的副本，并将其转换为灰度。

Make a copy of the original image and convert it to grayscale.

请灰度图像的副本和反转这个形象。

Make a copy of the grayscale image and invert this image.

在这一点上，<​​strong>图片＃1 与原来的图片＃2 是灰度和图片＃3 与倒影。

At this point, image #1 is the original, image #2 is grayscale, and image #3 is the inverted image.

然后，应用的 颜色减淡 的图像＃3 （使它白）和<一个href=\"http://opencv.itseez.com/modules/imgproc/doc/filtering.html?highlight=gaussianblur#gaussianblur\">execute模糊。单单这会给你在灰度铅笔素描效果。

Then, apply the color dodge to image #3 (making it white) and execute the blur. This alone will give you the pencil sketch effect in grayscale.

如果你想最终的结果是彩色的，你将不得不混合图像＃3图像＃1。

If you want the final result to be colored, you will have to blend image #3 with image #1.

寻找信息融合？检查这，的这和这个

Looking for information on blending? Check this, this and this.

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