imagemagick 图片叠加-compose模式详解

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命令格式

convert dst.png -compose [模式] src.png -composite out.png

convert dst.png -compose [模式] src.png +swap -composite out.png
相当于
convert src.png -compose [模式] dst.png -composite out.png


Use +swap to switch the last two images in the sequence.
+swap 为交换图片叠加次序

查看叠加模式

convert -list compose

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1. Atop
2. Blend
3. Blur
4. Bumpmap
5. ChangeMask
6. Clear
7. ColorBurn
8. ColorDodge
9. Colorize
10. CopyAlpha
11. CopyBlack
12. CopyBlue
13. CopyCyan
14. CopyGreen
15. Copy
16. CopyMagenta
17. CopyRed
18. CopyYellow
19. Darken
20. DarkenIntensity
21. DivideDst
22. DivideSrc
23. Dst
24. Difference
25. Displace
26. Dissolve
27. Distort
28. DstAtop
29. DstIn
30. DstOut
31. DstOver
32. Exclusion
33. HardLight
34. HardMix
35. Hue
36. In
37. Intensity
38. Lighten
39. LightenIntensity
40. LinearBurn
41. LinearDodge
42. LinearLight
43. Luminize
44. Mathematics
45. MinusDst
46. MinusSrc
47. Modulate
48. ModulusAdd
49. ModulusSubtract
50. Multiply
51. None
52. Out
53. Overlay
54. Over
55. PegtopLight
56. PinLight
57. Plus
58. Replace
59. Saturate
60. Screen
61. SoftLight
62. Src
63. SrcAtop
64. SrcIn
65. SrcOut
66. SrcOver
67. VividLight
68. Xor

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convert dst.png -compose [模式] src.png -composite out.png

预览

透明圆形反过来,就是加边框蒙版

阅读更多

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