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Mathematical method of image processing

Label:Mathematical method of image processingIn the process of image processing, mathematics always plays an important role, and permeates all the branches of image processing.By the 670 's, the linear processing method represented by Fourier

A survey of image segmentation methods

Tags: theoretical knowledge control ECC accuracy by preprocessing development focus simplificationA survey of image segmentation methodsTri Yue(School of Software, Xi ' an Jiaotong University, Shaanxi 710049)absrtact: By retrieving the image

Evaluation index of image sharpness

a method of definition evaluation without reference imagefrom:http://nkwavelet.blog.163.com/blog/static/227756038201461532247117 In the quality evaluation without reference image, the sharpness of image is an important index to measure the quality of

Cvcanny function of Image edge detection--OPENCV

Label:Cvcanny function of Image edge detection--OPENCVCategory: C/void Cvcanny (const cvarr* image, cvarr* edges, double threshold1, double threshold2, int aperture_size=3); Image single-channel input images. Edges the output image of a

Two-dimensional discrete wavelet transform of image

This two-day exposure to image Multiscale decomposition of some content, the main focus on the EMD (empirical mode decomposition)--bemd (bidimensional empirical mode decomposition), LMD ( Local mean decomposition)--BLMD (bidimensional local mean DECO

Cvcanny function of Image edge detection--OPENCV

Label:Cvcanny function of Image edge detection--OPENCV Category: C/ void Cvcanny (const cvarr* image, cvarr* edges, double threshold1, double threshold2, int aperture_size=3); Image single-channel input images. Edges the output image of a

Principle of image compression

Original URL: http://blog.csdn.net/newchenxf/article/details/51693753Reprint please indicate the source. 1 Why images can be compressed An original image (1920x1080), if each pixel is 32bit (RGBA), then the memory size required by the image1920x1080x

Basic concepts of image processing-convolution, filtering, smoothing (reprint)

Tags: basic concept MIL-specific and IMG knowledge ATI Normal Distribution other/* Today, my brother asked me, CV's book is full of convolution, filtering, smoothing ... What exactly is the meaning of these concepts, what is the difference and

Evaluation and analysis of image sharpness

In the quality evaluation without reference image, the sharpness of image is an important index to measure the quality of image, it can be better compared with people's subjective feeling, and the image's sharpness is not high to show the blurred ima

Some knowledge points of image convolution and filtering

Label:Some knowledge points of image convolution and filtering[Email protected]Http://blog.csdn.net/zouxy09Before learning CNN, there are some study and collation of convolution, later on the rotten tail, and now a little tidying up, first put up to

Some knowledge points of image convolution and filtering

Tags: effect ETH panning note tools blank artifact condition periodicSome knowledge points of image convolution and filtering[Email protected]Http://blog.csdn.net/zouxy09Before learning CNN, there are some study and collation of convolution, later

Some knowledge points of image convolution and filtering

Label:Some knowledge points of image convolution and filtering[Email protected]Http://blog.csdn.net/zouxy09Before learning CNN, there are some study and collation of convolution, later on the rotten tail, and now a little tidying up, first put up to

The basic flow and key technology of image stitching __ image processing

From : mosaic of remote sensing images The basic process of image mosaic (1) Image preprocessing: The original image for histogram matching, smoothing filter, enhanced transformation and other digital imagesThe basic operation of the processing, f

OpenCV2 Study Notes (v): Fundamentals of Image filtering

Tags: qt opencv filtering C + + edge detectionA: Basic conceptsFiltering is a basic operation in digital image processing, which can be said everywhere in the field of signal processing. Image filtering, that is, in the case of preserving the image

The calculation of image similarity

Label:Http://blog.sina.com.cn/s/blog_4a540be60100vjae.htmlThe calculation of image similarity (2011-12-13 22:16:23) reproduced Tags: image similarity svd nmf Babbitt distance histogram distance image Hash Image correction

Three levels of image engineering

Image Engineering In recent years, image technology has been paid great attention and progress, there are many new theories, new methods, new algorithms, new means and new equipments. The image industry agrees that they need to be researched and int

Double cubic interpolation of image scaling

Double cubic interpolation of image scaling One: Mathematical Principles If you know a function f (x) and its derivative at x=0,x=1, then the function can be interpolated between [0,1], when the function When expressed as a three-time polynomial, we

android-own definition of the use of image resources (1)

Tags: res layout interest ace load soft about SRC useandroid-own definition of the use of image resourcesApril 28, 2014 Monday sunny mood calmthis blog post to you to introduce, in the Android development in the use of some of the image resources,

On preprocessing technology of image recognition

Tags: improved reverse image restoration nbsp Storage Digital Earth Layered DigitalIn image recognition, the quality of image directly affects the design and effect accuracy of recognition algorithm, so in addition to the optimization of algorithm,

Summary of Image Edge detection

Tags: ext har vertical Position effect conversion conditions by addThe edge is the area boundary where the grayscale in the image changes dramatically. The change of image gray scale can be expressed by the gradient of gray distribution of image,

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