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说明：  何凯明图像去雾的算法MATLAB实现 以及改进(He kaiming image defogging algorithm MATLAB implementation and improvement)

some fast feature extraction algorithms are addressed for joint retrieval of images compressed in JPEG and JPEG2000 formats. In order to avoid full decoding, three fast algorithms that convert block-based discrete cosine transform (BDCT) into wavelet transform are developed, so that wavelet-based features can be extracted from JPEG images as in JPEG2000 images.

图像融合程序，用以提取图像的高分辨率部分，实现图像的清晰化(image fusion procedure to extract high-resolution images, the images clearer)

实现北斗时（北斗周计数，周内秒）到UTC的转换(transfer BDT to UTC)

计算图像处理中的评价指标NPCR和UACI(Calculate the evaluation indexes NPCR and UACI)

基于LDA降维的遥感图像分类，LDA算法函数程序，可与各种分类算法结合，提高图像分类的速率(remote sensing image cut down dimension algorithm based on LDA.)

程序先用fspecial函数产生运动模糊图像，再用维纳滤波进行恢复(Procedures first fspecial functions to generate motion-blurred image, and then carry out the restoration of Wiener filtering)

对图片预处理加入高斯噪声，各种经典边缘检测算子对图像进行边缘提取(Gaussian noise on the image pre-processing, a variety of classic edge detection operator to extract image edge)

针对镜头畸变失真模型，进行镜头畸变失真校正的小程序(Distortion model for lens distortion, lens distortion distortion correction for a small program)

自适应中值滤波器 该滤波器与中值滤波器相比，功能有很大的改善，但函数要复杂了很多(adapt median filter ,this filter compared with median filter, it is much improved in the resulted image.)