1、Load：reads from disk the image in a specific format；

2、Save：saves to disk the image in a specific format；

3、Filter：2D linear filter(圖像銳化，可提高圖像清晰度)；

4、Copy：copies the image from an exsisting source；

5、Resample：resizes the image?；

6、Saturate：changes the saturation of the image(調整圖像飽和度)；

7、GrayScale：圖像灰度化；

8、Flip：圖像上下翻動；

9、Mirror：圖像左右翻動；

10、Negative：顏色取反(255-原值)；

11、Dither：converts the image to B&W using the desired method ；

12、Threshold：converts the image to B&W(二值化)；

13、AdaptiveThreshold：converts the image to B&W, using an optimal threshold mask(自適應閾值法)；

14、Colorize：replaces the original hue and saturation values；

15、Solarize：convert all colors above a given lightness level into their negative ；

16、Light：changes the brightness and the contrast of the image(圖像亮度和對比度調整)；

17、Threshold2：filters only the pixels with a lightness less (or more) than the threshold level, and preserves the?? colors for the unfiltered pixels；
18、Dilate：enhance the light areas of the image；
19、Erode：enhance the dark areas of the image；
20、Contour：enhance the variations between adjacent pixels；similar results can be achieved using Filter(), but the algorithms are different both in Edge() and in Contour()；
21、Edge：enhance the variations between adjacent pixels(注意線性和非線性的區別)；similar results can be achieved using Filter(), but the algorithms are different both in Edge() and in Contour()；
22、Trace：finds the contour of an object with a given color；
23、Noise：adds an uniform noise to the image；
24、Jitter：adds a random offset to each pixel in the image；

25、Draw：draws the image in the specified device context, with support for alpha channel, alpha palette, transparency, opacity；
26、GetWidth：獲得圖像的寬帶；
27、GetHeight：獲得圖像的高度；
28、GetXDPI：獲得圖像x軸分辨率(支持TIFF、JPEG、PNG、BMP格式)；
29、GetYDPI：獲得圖像y軸分辨率(支持TIFF、JPEG、PNG、BMP格式)；
30、IsValid：checks if the image is correctly initializated；
31、SetJpegQuality：set quality level for JPEG and JPEG2000；
32、GetJpegQuality：get quality level for JPEG and JPEG2000；
33、GetNumColors：returns 2, 16, 256; 0 for RGB images；
34、GetLastError：returns the last reported error；
35、SetPixelColor：設置像素顏色值；