guide:help:dkbuiltin:tgis_controllegendform_pixel
Table of Contents
Raster/Pixel Layer
Documentation | Help File | Layer Properties Control | Raster/Pixel layer
This is a description of the Layer Properties dialog box layout specific to pixel (image) layers. Use it to modify pixel layer appearance like color, histogram, contrast, etc.
Operations
List of all operations based on items in a left panel.
General
The General node covers general information about the layer.
| Name | Description |
|---|---|
| Interpretation | Enforce interpretation of the file as grid or pixel layer. |
| Parameters are common and are described here. | |
Sections
The Sections node summarizes information about sections visibility.
Section
The Section node contains subnodes for specific layer properties.
| Name | Description |
|---|---|
| Parameters are common and are here. | |
Pixel
The Pixel node contains all properties to specify pixel layer appearance.
| Colors | |
|---|---|
| Name | Description |
| Red | Red channel enhancement in -100% .. 100%. |
| Green | Green channel enhancement in -100% .. 100%. |
| Blue | Blue channel enhancement in -100% .. 100%. |
| Brightness | Brightness channel enhancement in -100% .. 100%. |
| Contrast | Contrast channel enhancement in -100% .. 100%. |
| Inversion | If checked colors will be inverted (looks like a negative) |
| Grayscale | If checked, color image will be forces to appears as black and white. |
| Histogram | If checked, image will be intensified by a histogram. Good for dark and blunt images. |
| Contract enhancement | If checked, image will be intensified by simple contrast enhancement. Good for dark and blunt images. |
| Colors | |
| Name | Description |
| Red band | An option to select different band to be used for red color channel. Good for multispectral images. This combo-box also provides also access to turn the channel off. |
| Green band | An option to select different band to be used for green color channel. Good for multispectral images. This combo-box also provides also access to turn the channel off. |
| Blue band | An option to select different band to be used for blue color channel. Good for multispectral images. This combo-box also provides also access to turn the channel off. |
| Alpha band | An option to select different band to be used for alpha (transparency) channel. Good for multispectral images. This combo-box also provides also access to turn the channel off. |
| Page | Option to select page number. Important only for multi-page images like some of TIFF images. |
| Transparency | |
| Name | Description |
| This option provides the ability to specify several zones of transparency by providing start and end color of transparency. It is useful for example to eliminate black borders around images. Clicking on a color panel brings Define color to define color. On a print screen above a zone defined as $FF000000..$FF6B6B6B eliminates from the image all colors on a ramp between black and gray. |
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2020/03/12 12:40