SARimageunderstandingandinterpretationofresearch

针对图像全局Otsu 分割算法和传统的局部阈值分割算法在复杂背景图像分割中的不足, 提出了一种采用局部动态阈值的图像分割算法。(Image segmentation algorithm for global Otsu and traditional local threshold segmentation algorithm in complex background image segmentation the insufficiency, puts forward a dynamic threshold use local image segmentation algorithm.)

说明：  用于特征提取，比较传统的一个方法，应用范围广，适合初学者(For feature extraction)

时移相位差校正法，通过时移，进行前后两次FFT分析，利用离散频谱对应峰值谱线的相位差以求出频率和相位校正量。(Phase difference correcting method by time-shifting. Make two FFT analysis before and after the time-shifting,and make use of the phase difference of the peak spectral lines to get frequency and phase correction amount.)

实现基本的LMS算法和归一化LMS算法学习曲线的比较仿真(LMS algorithm and normalized LMS algorithm learning curve comparing simulation)

伯克利图像小组提出来的图像分割评价指标：边界误差。(Evaluation of image segmentation. Image: Berkeley group boundary error.)

对比度拉伸，对原始图像进行对比度拉伸，从而得到拉伸后的图像(tensile contrast, the original image contrast stretching, and thus drawing the images)

说明：  GOME-2数据反演叶绿素荧光算法代码，添加文件为GOME-2 level 1b级数据时，得到的Fs数组即为反演结果(Code of chlorophyll fluorescence algorithm retrieved from GOME-2 data)

一般自然图像的梯度分布符合重尾分布，重尾分布也就是超拉普拉斯分布，根据这个特点进行图像复原。(The gradient of a natural image in line with heavy-tailed distribution, which is ultra-heavy-tailed distribution Laplace distribution, image restoration based on this feature.)

用于矩形检测的源代码，已配说明，易看懂。但不适合于车牌检测等复杂的矩形检测(Rectangular detection for the source code has been assigned that easy to understand. But not suitable for detection of license plate detection rectangular complex)

用于SIFT变化的关键点判断，定对比度和herrian矩阵，最后结果为关键点在DOG里的坐标！(Change for the SIFT key points to determine, set contrast and herrian matrix, the final results for the key points in the coordinates in the DOG!)