Changes between Version 9 and Version 10 of Downloads/Processing/tuiview


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Timestamp:
Oct 27, 2015 4:53:10 PM (3 years ago)
Author:
dac
Comment:

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  • Downloads/Processing/tuiview

    v9 v10  
    1111}}}
    1212
    13 Add images using the 'Add Raster' button in the top left.
     13Add images using the 'Add Raster' button in the top left, select the format from the dropdown menu. It is also possible to add zipped bil files (such as those ARSF deliver) by selecting 'All files' and clicking on the .zip file.
    1414
    1515The range of pixel values within an image often does not fall between 0 - 255, as required for display, therefore it is necessary to 'stretch' the values for display. Within TuiView the stretch of the image is adjusted using the 'stretch' dialogue, brought up by through the 'edit -> stretch' menu or right clicking a layer in the list of layers. Within the stretch dialogue the bands displayed and the type of stretch can be selected. A standard deviation stretch which will scale the pixel values to from the image mean - n*standard deviation to the image mean + n*standard deviations. The stretch can be applied to a single image (single arrow) or all open images (multiple arrows) as shown below.
     
    2323[[Image(tuiview_spectral_profile.png, width=500, align=center)]]
    2424
    25 TuiView will not open these unmapped (e.g., level1b) files by default and will give an error about only allowing north-up images. You can force TuiView to open them by setting the environmental variable `TUIVIEW_ALLOW_NOGEO` using:
     25TuiView will not open unmapped (e.g., level1b) files by default and will give an error about only allowing north-up images. You can force TuiView to open them by setting the environmental variable `TUIVIEW_ALLOW_NOGEO` using:
    2626{{{
    2727export TUIVIEW_ALLOW_NOGEO=YES