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en:traffic:brightness_contrast
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en:traffic:brightness_contrast [2018/09/22 12:03] bahnfrank65 [Syntax] |
en:traffic:brightness_contrast [2018/09/22 22:15] bahnfrank65 [Syntax] |
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| The formulation for adjusting the brightness and contrast is: | The formulation for adjusting the brightness and contrast is: | ||
| - | <code>[BC:<Helligkeitsänderung>,<Kontraständerung>]</code> | + | <code>[BC:<brightness change>, <contrast change>]</code> |
| Both values are given as decimal fractions with a decimal point instead of a comma and up to two digits behind it. Since both the brightness and the contrast can be increased and reduced, the control range is from -1 to 1. 0 stands for maintaining the original value. | Both values are given as decimal fractions with a decimal point instead of a comma and up to two digits behind it. Since both the brightness and the contrast can be increased and reduced, the control range is from -1 to 1. 0 stands for maintaining the original value. | ||
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| A brightness change of 1 causes a completely white picture, -1 blackens the picture. With a contrast change of 1, all color values are brought to the next extreme or close to it (ie either 0 or 255 or FF), at -1 the whole image is colored medium gray. | A brightness change of 1 causes a completely white picture, -1 blackens the picture. With a contrast change of 1, all color values are brought to the next extreme or close to it (ie either 0 or 255 or FF), at -1 the whole image is colored medium gray. | ||
| - | Transparent areas are excluded from these changes, and even black (# 000000) areas are only affected by Brightness 1 or Contrast -1. At the same time, [[en:traffic:tueranimation|animated doors]], [[en:traffic:vehicle list:vehicle macro: page variations|page variations]] and [[en:traffic:stromabnehmer:start|pantograph]] are currently excluded. | + | Transparent areas are excluded from these changes, and even black (# 000000) areas are only affected by Brightness 1 or Contrast -1. At the same time, [[en:traffic:animated_doors|animated doors]], [[en:traffic:vehicle_list:vehicle_macro:page_variations|page variations]] and [[en:traffic:pantograph:start|pantograph]] are currently excluded. |
| It is also possible to change rectangular sections of an image; These are specified with coordinates that define the lower left corner on the one hand and the dimensions of an area on the other hand. | It is also possible to change rectangular sections of an image; These are specified with coordinates that define the lower left corner on the one hand and the dimensions of an area on the other hand. | ||
en/traffic/brightness_contrast.txt · Last modified: 2018/09/22 22:24 by bahnfrank65
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