Messages

1

Python and Java API / Re: Exporting/Rendering depth map for specified camera view - Python scripting

« on: November 11, 2016, 06:22:37 PM »

Dear Alexey,

It worked! Thank you so much for helping out.

Safa

2

Python and Java API / Re: Exporting/Rendering depth map for specified camera view - Python scripting

« on: November 06, 2016, 05:08:49 PM »

Hi Alexey,

Thank you for your reply.

I am not sure how to find the minimal and maximal floating point values. I also don't think I understand how to scale the pixel values once I have this information. Could you provide some detail on these processes.

Thank you for taking the time to looking into this.

Safa

3

Python and Java API / Re: Exporting/Rendering depth map for specified camera view - Python scripting

« on: November 01, 2016, 07:27:08 PM »

Dear Alexey,

Thank you for your response. I have followed your instruction to a T. Below I have copied the code that I used which is in the python file I attached. I have added some comments where I applied your steps (which I had previously done).

def exportDepthRender(savetoPath, savedModel):
    doc = PhotoScan.app.document
    doc.open(savedModel)
    chunk = doc.chunk

    camera = chunk.cameras[0]    # getting Camera of first camera in chunk

    cameraTrans= camera.transform # The camera transform matrix you suggested
    cali = camera.sensor.calibration  # The calibration you suggested

    chunkModel = chunk.model # Getting model

    doc.save()


    image = chunkModel.renderDepth(transform = cameraTrans, calibration = cali) # Applying depth render as you suggested
    image.save(savetoPath + "/depth.png")

Using this method produces a depth map like the "undesired" one that I attached to my post. However when I use the GUI to export depth of the first camera I get a map like the "desired" one that I uploaded. So i fear that this step may not be the problem?

I am curious to also know what you mean by "internal representation" in the last sentence of your response. I would also like to know what you meant when you said the depth map that i am trying to save is not scaled? Does this mean that there is a fault with my steps prior to rendering the depth map?

Thank you for helping with this. Your assistance is much appreciated.

Regards,
Safa

4

Python and Java API / Exporting/Rendering depth map for specified camera view - Python scripting

« on: November 01, 2016, 09:25:02 AM »

Hi there, I have been using Agisoft PhotoScanPro for the passed few months to reconstruct a close range object and analyse the depth map of the object from a certain camera view. I have been able to do this my following the workflow process (without building the DEM - at takes 15 hours to complete). Once I completely reconstruct the model I can right click on the desired camera (the first one) in the 'workspace pane' and export the  depth map. This works for me and produces a depthmap, diffusion map and a normal map that I then save to a file location. However when I try to do this using python scripting it does not give me the same depth map. It instead gives me a map that shows the object as a uniform depth and the background as black (I have attached the pictures of the desired depthmap and python-produced depth maps to this post.

I have also attached my python script so far. The exportDepthRender function is the one I am having trouble with but maybe I am doing something wrong in the previous steps. I am using the transform matrix of the camera view that I want to produce the render but this isn't working. If anyone could help with this it would be greatly appreciated.

Regards,
Safa