[Python] How to add custom depth maps and generate point cloud metashape?

Good evening, I'm trying to load my own depth maps. I first generated the depth map files using Metashape, then loaded the files with Python and did some preprocessing with Python, then generated the files again. I used your example script as an example. However, when I load the depth maps, I can see them in the software, but they don't look like the ones generated by Metashape itself. Also, in your documentation, I wasn't able to understand how to load the imported depth maps to build the point cloud. What alternatives can I use, and would you have a sample script to help?

Example original:

# Imports photos with external depth maps.
#
# How to use:
# 1. Select images containing depth information. Depth images should be 1 channel grayscale images and contain depth in absolute units
# representing z value in camera coordinate system.
# 2. Select corresponding color images. Color images should have the same aspect ratio as depth images and the same file names (may have different extension)
# 3. After import is done, check depth maps are correct by toggling "Show Depth Maps" icon in the tool bar in photo view
#
# This is python script for Metashape Pro. Scripts repository: https://github.com/agisoft-llc/metashape-scripts

import os
from pathlib import Path

# Checking compatibility
compatible_major_version = "2.2"
found_major_version = ".".join(Metashape.app.version.split('.')[:2])
if found_major_version != compatible_major_version:
raise Exception("Incompatible Metashape version: {} != {}".format(found_major_version, compatible_major_version))

def import_external_depth():
depth_images = Metashape.app.getOpenFileNames("Select depth images:")
if (len(depth_images) == 0):
raise Exception("No depth images specified")

color_images = Metashape.app.getOpenFileNames("Select color images:")
if (len(depth_images) != len(color_images)):
raise Exception("Number of color images should match number of depth images")

depth_images.sort()
color_images.sort()

working_directory = Path(depth_images[0]).parent
working_directory_str = str(working_directory)
preprocessed_directory = working_directory.joinpath("preprocessed")
preprocessed_directory.mkdir(exist_ok = True)

print("Saving preprocessed images to " + str(preprocessed_directory))

Metashape.app.document.chunk.importDepthImages(filenames = depth_images, color_filenames = color_images, image_path = str(preprocessed_directory) + "/{filename}.tif")

label = "Scripts/Import external depth"
Metashape.app.addMenuItem(label, import_external_depth)
print("To execute this script press {}".format(label))



Default generate depth maps from metashape



Me:



Continue reading...