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![](Help/Images/trackbar.png) | | Threshold |
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![](Help/Images/threshold1.png) | | ![](Help/Images/threshold2.png) | | ![](Help/Images/threshold3.png) | | ![](Help/Images/threshold4.png) | | | Threshold = 64 | Threshold = 128 | Threshold = 192 |
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Use this option to change the threshold value. Pixels whose grayscale value is less than or equal to a certain threshold are set to the foreground color (or primary color). Pixels whose grayscale value is bigger than a certain threshold are set to background color (or secondary color).
Min = 0, Max = 255, Default = 128.
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![](Help/Images/checkbox-unchecked.png) | | Transparent |
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This option allows you to make the background color transparent.
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![](Help/Images/checkbox-unchecked.png) | | Antialias |
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![](Help/Images/antialias1.png) | | ![](Help/Images/antialias2.png) | | Without antialias | With antialias |
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Use this option to draw smooth flowing lines by shading the pixels along the borders of graphical elements.
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![](Help/Images/checkbox-unchecked.png) | | Reduce Noise |
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Reduces image noise. Image noise appears as random extraneous pixels that aren’t part of the image detail.
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![](Help/Images/checkbox-unchecked.png) | | Invert |
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Use this option to swap the foreground and background color.
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This option allows you to change the foreground color.
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This option allows you to change the background color.
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![](Help/Images/transgif1x1.gif) |
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![](Help/Images/listbox.png) | | Channel |
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This option allows you to select a specific color channel or grayscale values. The threshold filter will be applied to the selected channel.
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Using Preview Windows |
Favorites and History |
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