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Last Post 14 Jun 2016 09:36 PM by  anon
Change dark pixel to bright pixel
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anon



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14 Jun 2016 09:36 PM
    Hi, How can I inverse(negate) my PC? by change the dark pixel to bright pixel after PCA For example in my PC3 the vegetation cover is displayed with dark pixels, in order for me to highlight the vegetation I want to display the vegetation cover with bright pixel, by tricking/change the eigenvector loading from negative to positive vice versa. How can I do that in envi Thank You

    MariM



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    15 Jun 2016 07:20 AM
    If you display the image in ENVI 5.3, in the Layer manager, right-click on the image and select Change Color Table->More. Here you can apply a color table but you can also 'reverse' the color table. If you choose the b-w color table, reverse it and the previously dark areas will be bright.
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