Some digital image processing tools
(0)main.cpp
A simple test program including all the test items. Type in an integer to choose which to perform.
简单的测试主程序。要选择执行哪个测试，请输入一个整数。
(1)read_write_bmp.h
Read and write 2-bit monocolor, 8-bit grey-scale and 24-bit color bmp files. Adapted to 4-byte alignment.
读入和写入2比特单色/8比特灰度/24比特彩色bmp文件。已适应四字节对齐。
(2)image_interpolation.h
Using nearest, bilinear, and bicubic interpolation to rescale images.
使用最邻近插值、双线性插值、双三次插值缩放图片。
(3)histogram_equalization.h
Histogram equalization for 8-bit grey-scale and 24-bit color bmps.
对8比特灰度bmp和24比特彩色bmp的直方图均衡化。
(4)filter__spatial_domain.h
Using Gaussian low-pass filter and median filter to deal with noise in spatial domain.
用高斯低通滤波器和中值滤波器在空间域处理噪声。
(5)orthogonal_transformation.h
Adpoting DFT, DCT and Haar DWT(up to two-scale) to 8-bit grey-scale bmps.
对8比特灰度bmp执行离散傅里叶变换、离散余弦变换和(最多二尺度的)哈尔小波变换。
Note: NOT adapted to 4-byte alignment.
注意：没有适应四字节对齐。
(6)morphology.h
Adopting morphologic erosion to do boundary extraction on 2-bit monocolor bmps.
对2比特单色图执行形态学腐蚀操作，并且通过形态学腐蚀实现边界提取。
(7)image_segmentation.h
Using Otsu method and its imporved version using Laplacian edge information to perform global thresholding on 8-bit grey-scale bmps.
使用Otsu方法及其结合图像拉普拉斯提取边缘信息的改进版本，对8比特灰度图执行全局阈值处理。
(8)complex_xx .h/.cpp
Matrix tools used in some of the above methods.
上述部分方法需要用到的自编矩阵运算工具库。