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I have a high resolution (about 30 cm) RGB pan sharpened image (3 channels, 16x3 bit). My need is to make some edge detection aimed to segment human artifacts.

I load the image with Mat rgbPanSharpen = Imgcodecs.imread(rgbPanSharpenImage, Imgcodecs.IMREAD_UNCHANGED); but after that I have some doubts on how proceed.

I think I could work on single channels (using Core.split) having single 16 bit images, may be also converting to 8 bit, but I am afraid this approach is lossy.

Which should be the correct approach to make edge detection on such kind of images ? (I don't ask for code, just the correct logical approch to follow)

I have a high resolution (about 30 cm) RGB pan sharpened image (3 channels, 16x3 bit). My need is to make some edge detection aimed to segment human artifacts.

I load the image with Mat rgbPanSharpen = Imgcodecs.imread(rgbPanSharpenImage, Imgcodecs.IMREAD_UNCHANGED); but after that I have some doubts on how proceed.

I think I could work on single channels (using Core.split) having single 16 bit images, may be also converting to 8 bit, but I am afraid this approach is lossy.

Which should be the correct approach to make edge detection on such kind of images ? (I don't ask for code, just the correct logical approch to follow)

I have a high resolution (about 30 cm) RGB pan sharpened image (3 channels, 16x3 bit). My need is to make some edge detection aimed to segment human artifacts.

I load the image with Mat rgbPanSharpen = Imgcodecs.imread(rgbPanSharpenImage, Imgcodecs.IMREAD_UNCHANGED); but after that I have some doubts on how proceed.

I think I could work on single channels (using Core.split) having single 16 bit images, may be also converting to 8 bit, but I am afraid this approach is lossy.

Which should be the correct approach to make edge detection on such kind of images ? (I don't ask for code, just the correct logical approch to follow)

I have a high resolution (about 30 cm) RGB pan sharpened image (3 channels, 16x3 bit). My need is to make some edge detection aimed to segment human artifacts.

I load the image with Mat rgbPanSharpen = Imgcodecs.imread(rgbPanSharpenImage, Imgcodecs.IMREAD_UNCHANGED); but after that I have some doubts on how proceed.

I think I could work on single channels (using Core.split) having single 16 bit images, may be also converting to 8 bit, but I am afraid this approach is lossy.

Which should be the correct approach to make edge detection on such kind of images ? (I don't ask for code, just the correct logical approch to follow)

This a sample image

I have a high resolution (about 30 cm) RGB pan sharpened image (3 channels, 16x3 bit). My need is to make some edge detection aimed to segment human artifacts.

I load the image with Mat rgbPanSharpen = Imgcodecs.imread(rgbPanSharpenImage, Imgcodecs.IMREAD_UNCHANGED); but after that I have some doubts on how proceed.

I think I could work on single channels (using Core.split) having single 16 bit images, may be also converting to 8 bit, but I am afraid this approach is lossy.

Which should be the correct approach to make edge detection on such kind of images ? (I don't ask for code, just the correct logical approch to follow)

EDIT This a sample image