Skip to main content

Sentinel Hub

Sentinel Hub, powered by Planet Labs, allows you easily perform spectral analysis and interact with Planet data without needing other software. Build solutions, analyze data at scale, and find insights in this powerful tool.

  • 2,546 Topics
  • 9,074 Replies
2546 Topics
S
SentinelHub User
posted in Sentinel Hub
Process API: Access to inputMetadata in evaluatePixel?

Hi there 👋 I am using Processing API and a custom eval script here. So far so good. Q: Is there a way to access inputMetadata inside the evaluatePixel function? I need to get access to the from and to datetimes from dateFilter.timeRange for some calculation (compute delta datetime in days from the user provided to datetime to all scenes used)… I don’t want to use it in calculating outputMetadata but for a custom pixel calculation… 🤔 🤔

2
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
CRS for Sentinel Hub images

Hi there,Just creating my first few GIS images from Sentinel Hub. They look great but when I put them into QGIS they are about 1000 miles too far south. Which coordinate reference system should I be using for these? Or is there another setting that I should alter? (The images in question are of Burkina Faso)Thanks!

2
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Matching Landsat and Sentinel-2 bands

This might be a “harmonization” question, but nonetheless it seems like for the most part when I compare NDVI values from Sentinel-2 and Landsat 8/9 from SH that the values mostly match, except that Landsat 8/9 values are slightly biased low. When I compare level-2 products (surface reflectance) directly from AWS buckets for both sources, Landsat is way different (NDVI values are much lower). Do you guys apply some harmonization processes to try to get them closer? Just curious why your values appear closer while the AWS bucket ones are not close. Thanks.

1
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Evalscript to get an RGB image?

Hi, I want to get an RGB image for my co-ordinates using the API, I use the following evalscript for that: minVal = 0.0; let maxVal = 0.4; let viz = new HighlightCompressVisualizer(minVal, maxVal); function evaluatePixel(samples) { let val = [samples[0].B04, samples[0].B03, samples[0].B02]; return viz.processList(val); } function setup(ds) { setInputComponents([ds.B02, ds.B03, ds.B04]); setOutputComponentCount(3); } Which gives me following error: {"error":{"status":400,"reason":"Bad Request","message":"Script failed to return.","code":"RENDERER_EXCEPTION"}} I have made sure everything else is fine. I think there’s something wrong with the evalscript.

4
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Request image with multipolygons

Hello everyone, I hope you’re all doing well. I’m currently working on sending a request that involves multiple polygons. However, I’m encountering an issue where there’s a red area appearing between the polygons, when visualizing the NDVI index Here’s my script : //VERSION=3 function setup() { return { input: ["B04", "B08", "SCL", "dataMask"], output: [ { id: "default", bands: 4 }, { id: "index", bands: 1, sampleType: "FLOAT32" }, { id: "eobrowserStats", bands: 2, sampleType: "FLOAT32" }, { id: "dataMask", bands: 1 }, ], }; } function evaluatePixel(samples) { let val = index(samples.B08, samples.B04); let imgVals = null; const indexVal = samples.dataMask === 1 ? val : NaN; if (val < -0.5) imgVals = [0.05, 0.05, 0.05, samples.dataMask]; else if (val < -0.2) imgVals = [0.75, 0.75, 0.75, samples.dataMask]; else if (val < -0.1) imgVals = [0.86, 0.86, 0.86, samples.dataMask]; else if (val < 0) imgVals = [0.92, 0.92, 0.

5
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Pixel Is Points vs. Pixel Is Area

Hey all, I have a question about some specifics in a given image from SentinelHub. I generally get the image in a .tiff format and wonder in what rasterspace it is given. Normally there are two different given (PixelisPoints and PixelisArea) from which the ‘Area’ is default. In some cases this is found in the tiff.tags, but this seems not to be the case here. Is there a clear answer and if so, can I find some documentation about it? Some Infos about this is available at:https://svn.osgeo.org/metacrs/geotiff/trunk/geotiff/html/spec/geotiff2.5.html Thank you.

2
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Cannot import name 'get_s2_pixel_cloud_detector' from 'eolearn.mask'

Hi, I am working on a project to detect plastics using Sentinel-2. I am trying to follow theA pipeline for detecting macro-plastics in coastal waters using Sentinel 2 data python download_features.py --features data/features.csv I get an error when I run. I get the following Error: Traceback (most recent call last): File “”, line 1, in File “c:\users\username\anaconda3\lib\multiprocessing\spawn.py”, line 116, in spawn_main exitcode = _main(fd, parent_sentinel) File “c:\users\username\anaconda3\lib\multiprocessing\spawn.py”, line 125, in _main prepare(preparation_data) File “c:\users\username\anaconda3\lib\multiprocessing\spawn.py”, line 236, in prepare _fixup_main_from_path(data[‘init_main_from_path’]) File “c:\users\username\anaconda3\lib\multiprocessing\spawn.py”, line 287, in _fixup_main_from_path main_content = runpy.run_path(main_path, File “c:\users\username\anaconda3\lib\runpy.py”, line 265, in run_path return _run_module_code(code, init_globals, run_name, File “c:\users\userna

3
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Difference between Sentinel-2 L1C and L2A

Hello everyone. I periodically use the images in natural color for purposes of studying history (I verify where the vegetation was cut, plowed or burned to later be able to do field work). It is not clear to me what is the difference between the images of Sentinel-2 L1C and L2A since when I swap between one and the other I see them the same. Thank you so much.

2
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Same problem as Sentinel-2 L2A products crops unpredictably''

Hi! I’m having a similar problem as this forum topic and, as suggested, I went to EO-Browser to see if my AOI is in the border of the tile.The AOI is not on the border of the tile and in EO-Browser you can see the image being cropped unpredictably. Furthermore, the crop is not the same every time.The image for 2021-10-28 is just for reference when the API works OK2021-10-20 cropped2021-10-28 normal2021-11-14 cropped2021-11-09 image not even intersecting AOI (only EO-Browser version)Best,             

4
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
NDVI value to get the the % of the green area

Hello there We are using Eos explorer we are getting the NDVI for all area, we are looking to calculate those values based on the area of interest, the idea is to calculate the green area inside this area of interest is there any way we could get this direct from the platform, or do we have to do it outside the platform Thanks

3
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Sentinel-hub field-delineation deployment

Hello, I would like to run the field-delineation project. While doing so, I’m getting into the following error where converting tiff files to eopatches: 2023-05-09 11:18:46,915 rasterio._filepath ERROR File-like object not found in virtual filesystem: b’29a650e4-51a0-43dc-9539-84777b3482ef/29a650e4-51a0-43dc-9539-84777b3482ef.hdr’ 2023-05-09 11:18:46,916 rasterio._env INFO GDAL signalled an error: err_no=4, msg=“`/vsipythonfilelike/29a650e4-51a0-43dc-9539-84777b3482ef/29a650e4-51a0-43dc-9539-84777b3482ef’ not recognized as a supported file format.” rokenProcessPool Traceback (most recent call last) Cell In[67], line 1 ----> 1 convert_tiff_to_eopatches(tiffs_to_eop_config) File ~/.local/lib/python3.10/site-packages/fd-1.0.0-py3.10.egg/fd/scripts/tiffs_to_eopatches.py:71, in convert_tiff_to_eopatches(config) 68 executor = EOExecutor(workflow, exec_args, save_logs=True, logs_folder=‘.’) 70 LOGGER.info(‘Execute conversion’) —> 71 executor.run(workers=co

5
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Download ROI from tile stored on AWS

Is there any way to download small ROI from a sentinel-2 tile that is stored on AWS instead of downloading the whole tile and then cropping it?

1
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Problem with Landsat5 specific dates data

I’m using the python API to download a batch of images and I get the following error: DownloadFailedException: Failed to download from: https://services-uswest2.sentinel-hub.com/api/v1/process with HTTPError: 500 Server Error: Internal Server Error for url: https://services-uswest2.sentinel-hub.com/api/v1/process Server response: “{“error”:{“status”:500,“reason”:“Internal Server Error”,“message”:“Illegal request to s3://usgs-landsat/collection02/level-2/standard/tm/2007/190/031/LT05_L2SP_190031_20070314_20200830_02_T2/LT05_L2SP_190031_20070314_20200830_02_T2_SR_B1.TIF. HTTP Status: ‘403’”,“code”:“RENDERER_EXCEPTION”}}” before calling the API I’m doing a search to see what the catalog has. and this date exists in the catalogue: datetime.datetime(2007, 3, 14, 9, 42, 9, 464000, tzinfo=tzutc()), a few other datapoints also have an issue. for example: DownloadFailedException: Failed to download from:https://services-uswest2.sentinel-hub.com/api/v1/process with HTTPError: 500 Server Err

4
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Sentinel 2 2A bands every Wavelength data

Hi, I’m using the sentinel 2 2A bands and Sentinel-2 Bands | Sentinel-Hub custom scripts showed me that every band is tested on a certain Central Wavelength and has his own Bandwidth. For example for band 2: B02 (blue) Resolution = 10m/px Central Wavelength = 490nm Bandwidth = 65nm Correct me if I’m wrong, but does that mean band 2 is tested between the wavelengths of 425-555(-65<-490->+65)? If so, is it possible to also acquire every wavelength that is not the central, like wavelength 435 or 485 or even 445.5? Or is there a better script/way to acquire a lot of wavelengths measurements from Sentinel 2?

6
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Integrating Sentinel Hub Images into the Google Maps API

I need to integrate the sentinel images, NDVI, in my application, in a Google Maps API. I saw the example in the playground, I used it inside my app and everything worked, I can really pull the information and everything works fine. But, I have this Sentinel Hub label in the middle of the map and I would like to get rid of it. Can anyone help me with this?

1
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Saving cloud mask

Hi, I have gone through the sentinel2-cloud-detector-example in jupyter notebook. It has worked very well for my area of interest. But how do I export the resulting masks in vector or raster format? thanks

2
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Clipping Downloaded data

I have download the data using SentinelHubRequest(). I got an array of 256 X 256 (though I have shared the exact geometry of my farm). I want to understand how sentinel hub process box v/s full geometry in processing API, also please help me understand is there any simple way to clip the 256X256 nd array? Thanks in Advance

7
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
EO-Learn Slovenia Notebook: Deep Learning Example

Hello! I am still working through the SI_LULC_pipeline example and I had a question. In the blog post associated with the example, Land Cover Classification with eo-learn: Part 3 | by Matic Lubej | Sentinel Hub Blog | Medium, on part 3 it mentions that you attempted a deep learning approach for the eopatch data of slovenia. Is there example code for this? I would be really interested in running through the example to see how it works. I was able to find the eo-flow repository on github, is this where the deep learning examples are located?

6
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Subscribing to commercial/third-party data

I’m interested in subscribing to commercial/third-party data and would appreciate information regarding data availability in my country (Morocco).

1
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Where can I find the S2 cloudless masks?

Hi,it came to my attention that you produced custom cloud masks (different from the “official” L2A SCL mask) for all Sentinel-2 scenes. Thanks for that!Are they available for download as files in a specific S3 bucket, or can you just use them via the sentinel-hub API inside a custom script?Thanks for the answer in advance!Best regards

2
S
4 months ago
S
Sinergise Team
posted in Sentinel Hub
How to access S3 data from AWS?

Data made available in a Requester Pays Amazon S3 bucket can still be accessed in all the normal ways. However, the requester needs to pass a flag at request time indicating they know they will be charged for the request and any data egress. More details on this concept can be found at https://docs.aws.amazon.com/AmazonS3/latest/dev/RequesterPaysBuckets.html The request mechanism can vary slightly depending on how you access the data currently. Links to some common access mechanisms are below: REST API Node.js (with RequestPayer flag) Python (with RequestPayer flag) A full list of documentation for the various access mechanisms can be found at https://aws.amazon.com/tools/.

18
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Immagini satellitari multispettrali

Good morning everyone, I’m a new user, sorry for my english. I am an independent archaeologist. Could someone help me with the satellite images? I joined this forum, it was recommended to me by the Sentinel Team, as I was looking for an infrared image, the one I downloaded from the portal, is NOT High Definition. I tell you this because I discovered, through Google Earth, an anomaly in the terrain that would suggest an ancient structure, perhaps a Roman Domus or something else. I need infrared images or multispectral satellite images to better understand the nature of the terrain anomaly. I report the coordinates of the anomaly and I ask you forum users for help. this is the anomaly observed from an aerial photo - April 2008 altitude 6000 meters

6
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Differences between FIS and CSV NDVI data from Sentinel Hub

Hi We try to use sentinel hub-py to obtain NDVI data programmatically from the Feature Info Service (‘the FIS data’), instead of manually exporting data from the EO Browser to a csv file (‘the CSV data’). Currently, the FIS data and the CSV data are different. We suspect several things to be responsible for that difference: Layers. The CSV data is marked ‘C0’, while the FIS data includes C0, C1, C2, C3. Which of these should be used? Resolution. In the FISRequest, one of the fields is “resolution” which is described as “spatial resolution on which to calculate statistics” (Sentinel Hub Feature Info Service (FIS) — Sentinel Hub 3.2.1 documentation) We would like its value to match the value used for the CSV data, however, we cannot find this value/setting in the EO Browser. Time Intervals. The CSV data includes much less time samples (lines) than the FIS data. What is the reason and can this be changed? Your help would be appreciated.

2
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Sentinel-1 GRD products erroneous geocoding information

Hi,I download Sentinel-1 GRD products from https://search.asf.alaska.edu/. The original Geotiff image contains a lot of ground control points (GCPs) but not georeferenced. I georeference the images using GCPs by the following codegdalwarp s1a-iw-grd-hh-20150117t091102-20150117t091131-004209-0051d2-001.tiff -tps 20150117.tif.However, the geocoding information of different images is inconsistent after georeferencing.I wonder what is the problem. Do I use the wrong command?Best

3
S
4 months ago
S
SentinelHub User
posted in Sentinel Hub
Process API questions

Hello, I am trying to access S1 data for multiple dates. Our AOIs are anywhere between 50 sq. km. to 500 sq.km. As told by SH team, we are using Process API to access it. I have a couple of questions related the API. I was able to specify resolution parameter in the api request. Here is what my code looks like in Python. Notice that I am specifying resolution for S1 data which may not be the best idea. But I was not sure how to get IW - high res data otherwise. data_folder='data', evalscript=evalscript_all_bands, input_data=[ SentinelHubRequest.input_data( data_collection=DataCollection.SENTINEL1_IW, time_interval=(start, end), // Single day based on catalog data other_args={ "processing": {"orthorectify": True, "backCoeff": "GAMMA0_TERRAIN", "upsampling": "NEAREST", }} )], responses=[ SentinelHubRequest.output_response('default', MimeType.TIFF) ],

2
S
4 months ago
Terms & Conditions