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Esri / WAB-Image-Services-Widgets

Web AppBuilder widgets for Image Services (WABIS)
Apache License 2.0
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Can we use the IS ChangeDetection widget with imagery from drone? #44

Closed nuttawat5931 closed 3 years ago

nuttawat5931 commented 3 years ago

I was tested ISChangeDetection widget with a multi band imagery service from UAV as mosaic dataset which is published from ArcGIS Pro 2.6. My workflow is using a vegetation index method with Difference Mask mode on the widget then select an IR and R band as suggest then apply. However, the result is nothing change to a map, no area decease or increase in the result.

best regards, nuttawat

nuttawat5931 commented 3 years ago

For more information, I am able to use a change detection tool in Image Mask (configurable apps in Enterprise portal 10.8.1) with the same multi-band imagery service from UAV which is tested in WABIS widget to see a change in an increasing or decreasing area change. But I can not calculate a change result in IS ChangeDetection widget in Web AppBuilder. Not only to imagery service from UAV but using a landsat/MS service is unable too.

Is these widget is usable or not? If yes, could you provide the complete workflow of using the IS ChangeDetection widget? Because I was follow the instruction provided in a PDF as well. But it still can not see a different change in a result.

nuttawat5931 commented 3 years ago

This is a video for Chang Detection from a configurable apps. https://drive.google.com/file/d/110MRMzOOHMcYWx2FLN09rFKOmJtcMkJl/view?usp=sharing

and another one is a video using ISChangeDetection widget in Web AppBuilder for developer edition https://drive.google.com/file/d/1Fb1yKGe0yjXgwVti1UZlEOqPgFgfiq62/view?usp=sharing

priya4991 commented 3 years ago

@nuttawat5931 Thank you for reporting this. We will look into this and get back to you soon.

nuttawat5931 commented 3 years ago

hi @priya4991 If any updates please reach me ASAP. Thank you.

priya4991 commented 3 years ago

@nuttawat5931 we are looking into this with priority. Will get back to you in a day.

priya4991 commented 3 years ago

@nuttawat5931 I just went through your video, and tried the widget on Multispectral Landsat. You are missing a step in your workflow. After you set a particular image as Secondary Image, you have to then choose the Primary Image. And then you have to perform change detection. When I don't select a primary image after selecting the secondary image, that is when I run into your problem. Please try this out and then get back to us if you face any issues.

nuttawat5931 commented 3 years ago

Many thanks @priya4991 I am able to run the widget now.

priya4991 commented 3 years ago

@nuttawat5931 great! :) if the widget is working, and you are not facing any more issues, please do close this issue. Thank you.