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Você pode recortar um arquivo MrSID no arcmap?

BrandonPrice1

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Eu tentei recortar a imagem MrSid destacada na tabela de conteúdos usando a opção exportar dados e a ferramenta clip (data management), mas nenhuma funcionou. A opção exportar dados não aparece quando você clica com o botão direito na camada sid na tabela de conteúdos e a camada sid nem sequer aparece na ferramenta clip como uma camada potencial para recortar. Alguém poderia, por favor, aconselhar? Obrigado.<\/P>

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Accepted answers

Cody Benkelman

Brandon

I don't understand why this isn't working. It works on my computer, although I do see in your screenshot that the *sid file is not offered as an available input.

the Help doc here Clip—Help | ArcGIS Desktop confirms it shouldn't be a licensing problem (I have ArcMap Advanced, thought you might have Basic) so it should work.

Note instead of running the GP tool, you can do a clip using the Image Analysis window (IAW).

Note that the clipped image from IAW is virtual, on screen only, so then you'd need to Export (right click in table of contents) and Save As, noting that you can't write out *.sid files in ArcMap, so you'd have to save a TIFF or other format. (By default it tries to write a raster into a database, so you may want to change this to a file path and then end filename with *.tif).

Also, in the Export step it may try to promote your data to 16 bit and set NoData value to 256, so I assume you'd want to set this value to 0.

defaults shown:

change these fields:

All comments

George_Thompson

You may need to export/copy the MrSID to a different format then clip the raster. This could be done via a model or Python.

MrSID is a "read-only" within ArcGIS:

List of supported raster and image data formats—Help | ArcGIS Desktop

Supported raster dataset file formats—Help | ArcGIS Desktop

BrandonPrice1

Thanks George. I am using the copy raster in arccatalog suggested from your other thread: https://community.esri.com/message/379970?commentID=379970#comment-379970 . I get errors:

Any advice?

DanPatterson_Retired

Your destination folder is quite long and unwieldy and contains spaces in the path etc.

Try a local simple folder to get the process working

And! make sure you specify a file extension. *.tif files are the recommended raster format, so

C:/test/test.tif

would be a good candidate name for the export.

If you don't specify an appropriate file extension, your paths will cause esri grid formats to fail.

BrandonPrice1

so far so good. still processing.

Cody Benkelman

Brandon

I don't understand why this isn't working. It works on my computer, although I do see in your screenshot that the *sid file is not offered as an available input.

the Help doc here Clip—Help | ArcGIS Desktop confirms it shouldn't be a licensing problem (I have ArcMap Advanced, thought you might have Basic) so it should work.

Note instead of running the GP tool, you can do a clip using the Image Analysis window (IAW).

Also, in the Export step it may try to promote your data to 16 bit and set NoData value to 256, so I assume you'd want to set this value to 0.

defaults shown:

change these fields:

DanPatterson_Retired

ultiresolution Seamless Image Database (MrSID)

A proprietary compression technique especially for maintaining the quality of large images. Allows for a high compression ratio and fast access to large amounts of data at any scale. The MrSID Encoder is developed and supported by LizardTech, Inc. LizardTech website

Supports generations 2, 3, and 4.

Single file—extension *.sid

World file—extension *.sdw

Read-only

8- and 16-bit unsigned integer

Yes

Generation 2 and generation 3—limited to 1 or 3 bands

Generation 4—unlimited

Read only.. isn't correct then

So Raster file formats—ArcGIS Pro | ArcGIS Desktop

the above is only partially correct or is there more offered if you have the Data Interoperability extension?

Cody Benkelman

Dan

no, this is correct. We're only reading the *.sid file. If he clips and exports, he'll have to save the clipped raster as some other format. But (presuming one file) that's faster and easier than running CopyRaster for the entire file first, which I believe is what he ended up doing.

Cody

BrandonPrice1

I will definitely try this method Monday if the copyraster never completed because I left the process to run over the weekend. This makes sense that it would be much faster. I will keep this in mind for the future. Thanks Cody.

MikeVolz

Do you need additional licensing from LizardTech to use SID images in AGS Image Services?

Cody Benkelman

Michael

short answer, no.

This was an error on my part - my apologies. I was thinking "wavelet compressed images" and mixed up *.ecw format and *.sid format. My comments were correct if we were discussing *.ecw, but NOT for *.sid. There is no restriction or problem with serving *.sid files, but *.ecw files cannot be shared through ArcGIS Image Server without an additional license from Hexagon.

I'm going to edit and delete my erroneous comments from above, hoping to avoid confusing anyone.

Cody B.

BrandonPrice1

I still cannot save to another format by doing a right click sand save as for the sid file in the table of contents. I also do not know how to specify how to clip the image using selected polygons in the image analysis window. View screen:

Cody Benkelman

Brandon

Help is here Using the Clip button on the Image Analysis window—Help | ArcGIS Desktop and I showed the UI's above for clipping. What happens when you try that? Error? Nothing?

as for saving, Right click in table of contents (select the new layer after clip) to Export / Save As should also work to save a *.tif image copy of the *.sid image. Help is here Exporting a raster in ArcMap—Help | ArcGIS Desktop

If these are not working, please log a support incident with Technical Support

https://support.esri.com/en/contact-tech-support

It looks like you have 1,000 polygons. Are you intending to clip out 1,000 separate tiny image in separate files? Or are you expecting to create one single image with 1,000 "islands" but remove all the pixels in between?

Clipping from the Image Analysis Window (IAW) will do the latter; if you want the former, you'd have to use a GP tool or Python to select and clip one at a time, but I have a feeling there must be a better way to reach your end goal. If you put your *.sid file into a mosaic dataset and use your polygons to define the Footprint, then set mosaic dataset properties to "Clip to footprint? = Yes" you'll get 1,000 islands with no pixels in between. If your subsequent processes are in ArcMap this should work, but if you're trying to export to some other software, it won't understand the mosaic dataset. Can you let us know what you're seeking to accomplish?

Cody

BrandonPrice1

I am unable to export out the sid file to another format. Is there something I am missing? I was able to clip the sid (post fire) and ecw (pre fire) imagery layers to a portion of the footprint "eGIS_Infrastructure_Building_Footprint_2" layer to do further analysis on variations between the two. I was going to run the zonal statistics as table tool to see if I found major variations between the two that might suggest something was burned although I cannot do this with the sid.

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