Hello everyone, I have limited experience with R and have only been using it for GIS tasks. Now I have data from camera traps which take pictures when there is some movement and at the specific time of the day everyday. What I am planning to with this data is rather simple, I just want my script to identify the images where the lens was covered in snow and couldn't capture anything and eliminate those images. I think I am not able to look for the right material to read, since with all the research I did till now, I can only find blur image detection which is not exactly what I am looking for. I would really appreciate it if anyone can help with what exactly I should be reading to learn this. Thank you
Question for R-sig-ecology
3 messages · Anshika Kulshrestha, Lucas Heber Mariano Dos Santos, Sarah Goslee
Hello You will need a image classification model and implement it yourself Here some resource to get you started https://towardsdatascience.com/a-laymans-guide-to-building-your-first-image-classification-model-in-r-using-keras-b285deac6572 https://rpubs.com/spalladino14/653239 Cheers
From: R-sig-ecology <r-sig-ecology-bounces at r-project.org> on behalf of Anshika Kulshrestha <akulshrestha22 at gmail.com>
Sent: Monday, January 4, 2021 1:02:31 PM
To: r-sig-ecology at r-project.org <r-sig-ecology at r-project.org>
Subject: [R-sig-eco] Question for R-sig-ecology
Sent: Monday, January 4, 2021 1:02:31 PM
To: r-sig-ecology at r-project.org <r-sig-ecology at r-project.org>
Subject: [R-sig-eco] Question for R-sig-ecology
Hello everyone,
I have limited experience with R and have only been using it for GIS tasks.
Now I have data from camera traps which take pictures when there is some
movement and at the specific time of the day everyday. What I am planning
to with this data is rather simple, I just want my script to identify the
images where the lens was covered in snow and couldn't capture anything and
eliminate those images. I think I am not able to look for the right
material to read, since with all the research I did till now, I can only
find blur image detection which is not exactly what I am looking for.
I would really appreciate it if anyone can help with what exactly I should
be reading to learn this.
Thank you
[[alternative HTML version deleted]]
_______________________________________________
R-sig-ecology mailing list
R-sig-ecology at r-project.org
https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
Hi, I'm not sure you even need image classification. Use list.files() to get the image filenames. Read the image into R. Discard it if the pixel values have a very low variance, indicating that they didn't detect anything (or are mostly black? depending on what your camera records when covered in snow). There are R packages such as jpg and tiff that allow you to read common image formats into R. Sarah On Mon, Jan 4, 2021 at 11:02 AM Anshika Kulshrestha
<akulshrestha22 at gmail.com> wrote:
Hello everyone,
I have limited experience with R and have only been using it for GIS tasks.
Now I have data from camera traps which take pictures when there is some
movement and at the specific time of the day everyday. What I am planning
to with this data is rather simple, I just want my script to identify the
images where the lens was covered in snow and couldn't capture anything and
eliminate those images. I think I am not able to look for the right
material to read, since with all the research I did till now, I can only
find blur image detection which is not exactly what I am looking for.
I would really appreciate it if anyone can help with what exactly I should
be reading to learn this.
Thank you
[[alternative HTML version deleted]]
_______________________________________________ R-sig-ecology mailing list R-sig-ecology at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
Sarah Goslee (she/her) http://www.numberwright.com