Documentation:Modules/crop: Difference between revisions
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{{Module|name=Crop|type=Video filter|description=Remove borders of the video and replace them with black borders}} | :''Were you looking for {{docmod|croppadd}}, the current module?'' | ||
{{Module|name=Crop|type=Video filter|last_version=2.0.9|description=Remove borders of the video and replace them with black borders}} | |||
[[ | == Options == | ||
<onlyinclude>{{Option | |||
|name=crop-geometry | |||
|value=string | |||
|description=Set the geometry of the zone to crop. This is set as <code><nowiki><width> × <height> + <left offset> + <top offset></nowiki></code> | |||
}} | |||
{{Option | |||
|name=autocrop | |||
|value=boolean | |||
|default=disabled | |||
|description=Automatically detect black borders and crop them | |||
}} | |||
{{Option | |||
|name=autocrop-ratio-max | |||
|value=integer | |||
|default=2405 | |||
|min=0 | |||
|max=15000 | |||
|description=Maximum image ratio. The crop plugin will never automatically crop to a higher ratio (ie, to a more "flat" image). The value is ×1000: 1333 means 4⁄3 | |||
}} | |||
{{Option | |||
|name=crop-ratio | |||
|value=integer | |||
|default=0 | |||
|min=0 | |||
|max=15000 | |||
|description=Force a ratio (0 for automatic). Value is ×1000: 1333 means 4⁄3 | |||
}} | |||
{{Option | |||
|name=autocrop-time | |||
|value=integer | |||
|default=25 | |||
|description=The number of consecutive images with the same detected ratio (different from the previously detected ratio) to consider that ratio changed and trigger recrop | |||
}} | |||
{{Option | |||
|name=autocrop-diff | |||
|value=integer | |||
|default=16 | |||
|description=The minimum difference in the number of detected black lines to consider that ratio changed and trigger recrop | |||
}} | |||
{{Option | |||
|name=autocrop-non-black-pixels | |||
|value=integer | |||
|default=3 | |||
|description=The maximum of non-black pixels in a line to consider that the line is black | |||
}} | |||
{{Option | |||
|name=autocrop-skip-percent | |||
|value=integer | |||
|default=17 | |||
|min=0 | |||
|max=100 | |||
|description=Percentage of the line to consider while checking for black lines. This allows skipping logos in black borders and crop them anyway | |||
}} | |||
{{Option | |||
|name=autocrop-luminance-threshold | |||
|value=integer | |||
|default=40 | |||
|min=0 | |||
|max=128 | |||
|description=Maximum luminance to consider a pixel as black <noinclude>(0-255)[[#Note|*]]</noinclude><includeonly>(0-128)</includeonly> | |||
}}</onlyinclude> | |||
== Note == | |||
This must be a typo. Despite the [https://git.videolan.org/?p=vlc.git;a=blob;f=modules/video_filter/crop.c;h=2584780d98bb8527f9aacf540721a4ed5b852833;hb=c638a67c52980404d2aa6f6851b455743a898820#l97 claim of a range of <code>0-255</code>] in the help text for the <code>--autocrop-luminance-threshold</code> option, [https://git.videolan.org/?p=vlc.git;a=blob;f=modules/video_filter/crop.c;h=2584780d98bb8527f9aacf540721a4ed5b852833;hb=c638a67c52980404d2aa6f6851b455743a898820#l129 the call] to <code>[https://git.videolan.org/?p=vlc.git;a=blob;f=include/vlc_configuration.h;h=bdbb11026492436f7f7297e096a8c62f8e899b68;hb=c638a67c52980404d2aa6f6851b455743a898820#l344 add_integer_with_range]</code> would have limited this to effectively <code>0-128</code>. | |||
== Source code == | |||
* {{VLCSourceFile|p=vlc/vlc-2.0.git|modules/video_filter/crop.c}} | |||
{{Documentation}} | |||
Latest revision as of 06:52, 7 April 2019
- Were you looking for croppadd, the current module?
| Module: Crop | |
|---|---|
| Type | Video filter |
| First VLC version | - |
| Last VLC version | 2.0.9 |
| Operating system(s) | all |
| Description | Remove borders of the video and replace them with black borders |
| Shortcut(s) | - |
Options
- crop-geometry <string> : Set the geometry of the zone to crop. This is set as
<width> × <height> + <left offset> + <top offset> - autocrop <boolean> : Automatically detect black borders and crop them default value: disabled
- autocrop-ratio-max <integer [0 .. 15000]> : Maximum image ratio. The crop plugin will never automatically crop to a higher ratio (ie, to a more "flat" image). The value is ×1000: 1333 means 4⁄3 default value: 2405
- crop-ratio <integer [0 .. 15000]> : Force a ratio (0 for automatic). Value is ×1000: 1333 means 4⁄3 default value: 0
- autocrop-time <integer> : The number of consecutive images with the same detected ratio (different from the previously detected ratio) to consider that ratio changed and trigger recrop default value: 25
- autocrop-diff <integer> : The minimum difference in the number of detected black lines to consider that ratio changed and trigger recrop default value: 16
- autocrop-non-black-pixels <integer> : The maximum of non-black pixels in a line to consider that the line is black default value: 3
- autocrop-skip-percent <integer [0 .. 100]> : Percentage of the line to consider while checking for black lines. This allows skipping logos in black borders and crop them anyway default value: 17
- autocrop-luminance-threshold <integer [0 .. 128]> : Maximum luminance to consider a pixel as black (0-255)* default value: 40
Note
This must be a typo. Despite the claim of a range of 0-255 in the help text for the --autocrop-luminance-threshold option, the call to add_integer_with_range would have limited this to effectively 0-128.
Source code
- modules/video_filter/crop.c (vlc/vlc-2.0.git)
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