# Target calibration: radiometric correction **URL:** \ **Category:** General Ag Questions/Troubleshooting\ **Created:** [October 19, 2022, 4:25pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287 "2022-10-19T16:25:28Z")\ **Posts on this page:** 16\ **Page:** 1
**Author:** ![ckumar](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@ckumar](https://community.pix4d.com/u/ckumar)\ **Post date:** [October 19, 2022, 4:25pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/1 "2022-10-19T16:25:28Z")
Hi, I am trying to perform the radiometric calibration to UAV images captured using Parrot SEQUOIA+ Multispectral Sensor. I am using the MicaSense calibrated reflectance panel. For some reason, the pix4dmapper does not detect the calibration panel and does not retrieve the reflectance factor. Although, I try to do manually the output does not come correctly i.e., no calibration or incorrect calibration was performed. Any suggestions or supports are highly appreciated. Thanks ---
**Author:** ![Jose.Arnaudo](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/jose.arnaudo/32/5966_2.png) [@Jose.Arnaudo](https://community.pix4d.com/u/Jose.Arnaudo)\ **Post date:** [October 20, 2022, 8:34am UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/2 "2022-10-20T08:34:29Z")
HI, If you are using a sequoia+, it does not need a reflectance panel as it gives absolute reflectance values already. You can read this article on how to import target images if you still want to import them: > **[Radiometric calibration target](https://support.pix4d.com/hc/en-us/articles/206494883-Radiometric-calibration-target#label3)** > > The use of a radiometric calibration target enables the software to calibrate and correct the images' reflectance according to the values given by the calibration target. > >   > > Note: In addition to t... If you do it manually, you will have to introduce the reflectance factor for each band. Best, ---
**Author:** ![Jose.Arnaudo](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/jose.arnaudo/32/5966_2.png) [@Jose.Arnaudo](https://community.pix4d.com/u/Jose.Arnaudo)\ **Post date:** [October 20, 2022, 8:36am UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/3 "2022-10-20T08:36:22Z")
You could also test [PIX4Dfields](https://www.pix4d.com/product/pix4dfields) our Ag. specialized product, we have now added access to satellite images and many new features are coming. ---
**Author:** ![ckumar](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@ckumar](https://community.pix4d.com/u/ckumar)\ **Post date:** [October 20, 2022, 3:35pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/4 "2022-10-20T15:35:11Z")
Hi Jose, Thank you very much for your support. I am using Sequoia\_4.0\_1280x960 sensor. It has four bands and an RGB camera. Could you please provide any link or document where I can refer to and also cite in my manuscript. I appreciate you response. Thank you ---
**Author:** ![ckumar](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@ckumar](https://community.pix4d.com/u/ckumar)\ **Post date:** [October 20, 2022, 3:49pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/5 "2022-10-20T15:49:27Z")
Hi Jose, Here are some snapshots that would give some more sense: ! ![Calibration results](https://global.discourse-cdn.com/pix4d/original/2X/f/f031ad42d37395213c8f48ea095ac5824d57ca3a.jpeg) [camera model|690x180](https://community.pix4d.com/uploads/short-url/e7ZCP6mRr3vHFVJedRennPE3WjM.jpeg) ---
**Author:** ![ckumar](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@ckumar](https://community.pix4d.com/u/ckumar)\ **Post date:** [October 21, 2022, 6:17pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/6 "2022-10-21T18:17:00Z")
Hi Jose, I was looking at Pix4DFields. It looks amazing to me. I also downloaded the trial version to understand its capabilities but unfortunately, I am not able to export the processed result to check if the calibration was performed correctly or not. Could you please help me to get a trial version with full functionality? If it workout for me then we can buy the licence for it. Thanks ---
**Author:** ![Jose.Arnaudo](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/jose.arnaudo/32/5966_2.png) [@Jose.Arnaudo](https://community.pix4d.com/u/Jose.Arnaudo)\ **Post date:** [October 24, 2022, 12:08pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/7 "2022-10-24T12:08:11Z")
Hi, Great I will DM you. Best, José ---
**Author:** ![ckumar](https://avatars.discourse-cdn.com/v4/letter/c/ecd19e/32.png) [@ckumar](https://community.pix4d.com/u/ckumar)\ **Post date:** [October 24, 2022, 4:42pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/8 "2022-10-24T16:42:02Z")
Thank you, Jose. ---
**Author:** ![stanislaw\_samborski](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@stanislaw\_samborski](https://community.pix4d.com/u/stanislaw_samborski)\ **Post date:** [January 13, 2023, 11:27am UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/9 "2023-01-13T11:27:21Z")
Hello Jose, I installed the 15-day version of Pix4Dfields software. Could you please help me to get a trial version with full functionality? If it works for me, we can buy the license. Where are the settings of the radiometric correction located in this version of Pix4Dfields? Can I do the corrections using the Sentera 6X Reflectance Panel? Regards, Stanislaw ---
**Author:** ![Jose.Arnaudo](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/jose.arnaudo/32/5966_2.png) [@Jose.Arnaudo](https://community.pix4d.com/u/Jose.Arnaudo)\ **Post date:** [January 13, 2023, 11:45am UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/10 "2023-01-13T11:45:57Z")
Hi Stanislaw, Under **Processing options** menu, go to **Advanced settings** and from there, **Radiometric correction** can be turned on. ![image](https://global.discourse-cdn.com/pix4d/original/2X/9/95d08cdd9cfbcd85a85d06c9f83e39f44f4aa896.png) The Sentera panel will be automatically detected by PIX4Dfields, you will see a confirmation on the left side menu after importing the images. I will generate a private ticket so we discuss about the trial functionalities extension. José ---
**Author:** ![stanislaw\_samborski](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@stanislaw\_samborski](https://community.pix4d.com/u/stanislaw_samborski)\ **Post date:** [January 13, 2023, 12:28pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/11 "2023-01-13T12:28:02Z")
Hi José, Thank you. Okay, please let me know about about the trial functionalities extension. Stanislaw ---
**Author:** ![stanislaw\_samborski](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@stanislaw\_samborski](https://community.pix4d.com/u/stanislaw_samborski)\ **Post date:** [January 13, 2023, 12:42pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/12 "2023-01-13T12:42:48Z")
Hi José, Does it mean that to do the radiometric correction, I should turn on the radiometric option then import a single best picture of the calibration panel together with the hundreds of the other crop pictures? Stanislaw ---
**Author:** ![stanislaw\_samborski](https://avatars.discourse-cdn.com/v4/letter/s/9e8a1a/32.png) [@stanislaw\_samborski](https://community.pix4d.com/u/stanislaw_samborski)\ **Post date:** [January 13, 2023, 12:44pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/13 "2023-01-13T12:44:28Z")
Hi José, Thank you. Should I turn on the radiometric option to do the radiometric correction and then import a single best picture of the calibration panel together with the hundreds of other crop pictures? Okay, please let me know about the trial functionalities extension. Stanislaw ---
**Author:** ![Jose.Arnaudo](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/jose.arnaudo/32/5966_2.png) [@Jose.Arnaudo](https://community.pix4d.com/u/Jose.Arnaudo)\ **Post date:** [January 13, 2023, 1:50pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/14 "2023-01-13T13:50:40Z")
Hi, Correct there is no extra work to do, just import the images together with the drone ones. Best, José ---
**Author:** ![donald.mcmurtrey](https://avatars.discourse-cdn.com/v4/letter/d/7c8e57/32.png) [@donald.mcmurtrey](https://community.pix4d.com/u/donald.mcmurtrey)\ **Post date:** [March 11, 2024, 11:52pm UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/15 "2024-03-11T23:52:59Z")
@Jose.Arnaudo I am in the prosses of purchasing a Mavic 3 Multispectral and will be flying fields soon. After reviewing the information and videos, it seems I would need the Airinov Aircalib Target to best calibrate my images. I have been through the internet and seem not to be able to find this product. Do you have any suggestions on where to find this calibration target? Please know that I will be flying the same fields throughout the year. Thanks for your help in advance! ---
**Author:** ![Jose.Arnaudo](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/jose.arnaudo/32/5966_2.png) [@Jose.Arnaudo](https://community.pix4d.com/u/Jose.Arnaudo)\ **Post date:** [March 12, 2024, 8:30am UTC](https://community.pix4d.com/t/target-calibration-radiometric-correction/24287/16 "2024-03-12T08:30:01Z")
Hi, unfortunately we don’t have any suggestion on where to buy them. You can reach out to Sentera as well [https://sentera.shop/products/reflectance-panel](https://sentera.shop/products/reflectance-panel). José