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Re: Making Color bar from Density Slice
| Re: Making Color bar from Density Slice [message #72649 is a reply to message #72523] |
Tue, 21 September 2010 05:11  |
kamal
Messages: 12
Registered: June 2010
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Junior Member |
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On Sep 17, 7:32 pm, kamal <kamaljit.rajku...@gmail.com> wrote:
>> I'm not completely sure what you're doing but in ENVI 4.5 at least you
>> can import a Colour table from an ASCII file in the ENVI Color Table
>> (see File - Preferences -Display Defaults - Edit System color tables)
>
>> Max
>
> Thank you Max for your reply.
> What I want to do is actually give colors to a ice surface temp image.
> The actual temp range is from 230 to 310(K). But I'd like to give an
> interval of 3K and segment the range up to 271K with the last segment
> taking color for temp range beyond 271K also. I did this using the
> Density Slice in ENVI. Now the problem is I have given some other
> values to Land and Cloud pixels, to be precise 50.00 and 25.00
> respectively. What a actually want to do is to plot the color bar such
> that the range starts from 230K and goes up to 271K omitting the
> ranges below 230K. I'm trying this using the Color Ramp in Annotation
> option in Overlay. Whenever I give the Min value of 230K it will take
> it as the lowest value but the color will not change accordingly. I am
> attaching the structure of the Density Slice I'm using to give the
> colors to different temp ranges. Please help me out.
>
> ENVI Density Slice Range File
> 0.00000000 0.00000000 255 255 255
> 25.000000 25.000000 212 230 225
> 50.000000 50.000000 255 0 0
> 230.00000 250.00000 163 242 252
> 250.00000 253.00000 195 230 253
> 253.00000 256.00000 138 205 248
> 256.00000 259.00000 72 182 254
> 259.00000 262.00000 2 133 243
> 262.00000 265.00000 3 84 202
> 265.00000 268.00000 0 39 162
> 268.00000 271.00000 2 0 78
> 271.00000 310.00000 198 198 198
>
> The 0 values denote NoData pixels.
> I hope somebody will kindly get me some solution in this.
> Thnx agan
>
> Kamal
Solved! It was quite easy and was there in Annotation itself.
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