GRAPPA

基于颜色累加直方图的图像检索，可供初学者参考，matlab编程实现(Cumulative color histogram-based image retrieval, reference for beginners, matlab programming)

本文件为一个可以实现自适应滤波算法的函数。在去噪等方面有这较好应用。(This document is an adaptive filtering algorithms to achieve the function. This application has a good de-noising and so on.)

说明：  针对相机标准线扩散函数的IDL测试源码，用于相机图像质量评估(IDL test source code for the standard line spread function of the camera, used for camera image quality assessment)

本文叙述了用数字图象处理技术实现天文图象目标的参数测量,重叠图象的分离、原以及星和银河的识别(This paper describes the use of digital image processing technology to achieve the objectives of astronomical images measured parameters, the separation of overlapping images, the original as well as the identification of stars and the Galaxy)

一个简短的计算图像信息熵的程序，对于初学IDL的开发者来说，有一定的借鉴作用(A brief image information entropy calculation procedure, IDL for beginner developers who have a certain reference)

利用matlab实现图像处理里的实现图像边缘检测、图像分割、特征提取以及图像数字识别等任务。 对图像分别进行模糊、锐化、和直方图均衡化处理，画出处理结果。实现整幅图像的边缘检测，可以看出有肖像画或素描的效果，画出处理结果。(Matlab realize image edge detection in image processing, image segmentation, feature extraction and image numeral recognition task. Fuzzy image sharpness, and histogram equalization paint treatment results. The whole image edge detection, portrait or sketch effect can be seen the paint treatment results.)

用于图像拼接的素材，可用于全景图拼接。主要是JPG形式，可通过SIFT算法进行处理(Material for image stitching, can be used for panorama stitching. Mainly JPG format, can be handled by the SIFT)

KSVD工具包,可以用于去噪增强等多种领域,具体方法是先训练方向,然后沿方向进行(KSVD toolkit can be used to enhance various areas of de-noising, the specific method is the first training direction, and then along the direction)

gmkl算法源码，广义多核学习，可用图像多类分类。(gmkl algorithm source, the a generalized multicore learning, free image multi-class classification.)

ROF-L2去噪模型，可以有效的去除加性噪声(ROF-L2 denoising model)