Hello,
Exactly, but I made some modification since my previous question. I am now
using external shapefile for each granule, which make it cut perfectly right.
Regards, Adam.
Le 20 juillet 2018 13:05:54 GMT+02:00, Daniele Romagnoli
<[email protected]> a écrit :
>Hi Adam,
>If this data is the same referred by your previous email about
>Transparency
>issue, I think this is related to the data being JP2 Lossy compressed
>at
>the origin.
>Quoting my previous answer on this:
>
>
>*As Simone reported in a previous email in reference to JP2 images,
>there
>might pixels that "appear"white but they are not, due to the Lossy JP2
>Compression.*
>
>*Therefore, in the first attached image you may notice some tiny white
>edges along the region borders.*
>*These are due to the fact that the pixels are not pure whites but
>something near.*
>*Take a look at the next image. I have checked the RGB values of an
>"apparently" white pixel (see the red marker).*
>*Actually it is an RGB:249,249,249 whilst pure WHITE is 255,255,255.*
>*So it will not be transparent (also notice all the other "almost
>white"
>teeth around on the edge).*
>
>
>
>
>Adding a new screenshot showing this between 2 granules (Rosport and
>Mompach regions) on QGIS
>(where I have put WHITE to transparent).
>Note that I have remarked with red markers some pixels along the 2
>granules
>edges.
>As you can see they are not pure white (due to lossy compression), so
>you
>can see the "almost white" edge
>between the Rosport and Mompach regions.
>
>
>
>Having some masking based on the lossless data or indicating the "valid
>geometry" would improve the situation by activating the
>footprintsBehavior.
>
>
>Hope this helps.
>Regards,
>Daniele
>
>
>
>
>
>On Fri, Jul 20, 2018 at 11:07 AM, Cecile, Adam <[email protected]>
>wrote:
>
>> Hello,
>>
>>
>> I guess it's coming from a "poor" rendering between the two granule
>(maybe
>> somehow related to footprint transparency ?) but it makes the
>rendering
>> kinda lowres...
>>
>>
>> Is there anyway to ask WMS to "improve" this ?
>>
>>
>> Best regards, Adam.
>>
>>
>>
>>
>>
>*____________________________________________________________________________________
>> Adam Cecile*
>> ICT Engineer - Software & ICT
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