<full><![CDATA[This effect allows to do Light Painting (i.e. painting with light sources on a photo by keeping the shutter
opened for a while), but for video.]]></full></description>
<author>Simon A. Eugster (Granjow)</author>
- <parameter type="simplekeyframe" name="sensitivity" default="100" min="0" max="500" factor="100">
- <name>Sensitivity</name>
- <comment><![CDATA[Light sensitivity.<br/>
- For slowly moving light source try to use a lower sensitivity to obtain a better exposure.]]></comment>
- </parameter>
<parameter type="simplekeyframe" name="thresholdBrightness" default="450" min="0" max="765" factor="1">
<name>Brightness Threshold</name>
<comment><![CDATA[How bright (<code>R+G+B</code>) does a pixel need to be in order to be recognized as a light source?<br/>
</parameter>
<parameter type="simplekeyframe" name="thresholdDiffSum" default="0" min="0" max="765" factor="1">
<name>Difference Sum Threshold</name>
- <comment><![CDATA[How much does the sum of all color channels <em>relative to the background image</em> (<code>dR + dG + dB</code>) have to change until a pixel is recognized as a light source?.<br/>
+ <comment><![CDATA[How much does the sum of all color channels <em>relative to the background image</em> (<code>dR + dG + dB</code>) have to change until a pixel is recognized as a light source?<br/>
Raising this value might, in some cases, avoid that some light objects lit by the light source are added to the light mask.]]></comment>
</parameter>
+ <parameter type="simplekeyframe" name="sensitivity" default="100" min="0" max="500" factor="100">
+ <name>Sensitivity</name>
+ <comment><![CDATA[Light sensitivity.<br/>
+ For slowly moving light source try to use a lower sensitivity to obtain a better exposure.]]></comment>
+ </parameter>
+ <parameter type="simplekeyframe" name="lowerOverexposure" default="0" min="0" max="10" factor="1">
+ <name>Lower Overexposure</name>
+ <comment><![CDATA[Lowers overexposure.<br/>
+ The light mask does not get white immediately when the light source is moving slowly or staying steady.]]></comment>
+ </parameter>
<parameter type="simplekeyframe" name="dim" default="0" min="0" max="255" factor="255">
<name>Dimming</name>
<comment>Dims the light mask. Lights will leave a fainting trail if it is set to a value > 0.</comment>
<parameter type="simplekeyframe" name="longAlpha" default="0" min="0" max="256" factor="256">
<name>α</name>
<comment><![CDATA[Determines how the effect tries to adapt to background changes. <br/>
- The Light Graffiti remembers the first frame of the clip it is applied to, so the clip should <em>always</em> start with the painter outside of the video. If the background constantly changes, e.g. on a street, try to set α > 0 to calculate an average background image.]]></comment>
+ The Light Graffiti effect remembers the first frame of the clip it is applied to, so the clip should <em>always</em> start with the painter outside of the video. If the background constantly changes, e.g. on a street, try to set α > 0 to calculate an average background image.]]></comment>
+ </parameter>
+ <parameter type="simplekeyframe" name="saturation" default="150" min="0" max="400" factor="100">
+ <name>Saturation</name>
+ <comment>Increases the saturation of lights.</comment>
</parameter>
<parameter type="bool" name="statsBrightness" default="0">
<name>Show brightness statistics</name>