# Estimation of Energy difference of Images for greased concrete surface with time

**URL:** <https://discourse.processing.org/t/estimation-of-energy-difference-of-images-for-greased-concrete-surface-with-time/22179>\
**Category:** Coding Questions\
**Created:** [June 26, 2020, 3:17pm UTC](https://discourse.processing.org/t/estimation-of-energy-difference-of-images-for-greased-concrete-surface-with-time/22179 "2020-06-26T15:17:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Ezzat\_Oraby](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/ezzat_oraby/32/9758_2.png) [@Ezzat\_Oraby](https://discourse.processing.org/u/Ezzat_Oraby)\
**Post date:** [June 26, 2020, 3:17pm UTC](https://discourse.processing.org/t/estimation-of-energy-difference-of-images-for-greased-concrete-surface-with-time/22179/1 "2020-06-26T15:17:16Z")

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Regarding to the attached image, we have a study on greased cement cubes absorption of grease.  
The intensity (I) of each cube has been calculated and then the Energy (E), E = I^2  
the differences between the image energy of each cube in successive times and the original cube surface without painting with grease to show the absorption rate of cement surface ](/t/2147)  
 ![image](https://canada1.discourse-cdn.com/flex036/uploads/processingfoundation1/original/2X/9/94971bb9dc4dc51b95882bfab76d008c33863bf5.png)  
the coded images for an image group named as G-10 🙂  
G-10 is the image of the original unpainted surface,  
the image name end with 0, 4.5,…18 stand for elapsed hours after painting

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**Author:** ![josephh](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/josephh/32/210_2.png) [@josephh](https://discourse.processing.org/u/josephh)\
**Post date:** [June 27, 2020, 10:14pm UTC](https://discourse.processing.org/t/estimation-of-energy-difference-of-images-for-greased-concrete-surface-with-time/22179/2 "2020-06-27T22:14:14Z")

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Hi,

Can you clearly define your problem? You described the data that you have but not the actual method that you want to perform. 🙂