Labelme labels circular objects [tips]

problem

labelme When labeling , Missing for “ Annular ” Operation of object processing , Only through the following processing , For example, the following left one / Situation of left two , The first on the right is the effect after processing .

solve

This situation can be summarized as marking different colors for different objects , Need to be right labelme Source file modification of program operation , See reference 1,2 strip . What I need is a true value grayscale , Operation idea Is to give two closed rings different colors , Use different colors to assign values to pixels and convert them into grayscale images in the subsequent processing code , The code is as follows , Replace with the code in the third reference .

			if data[:, :, 2][i][j]  > 0 and data[:, :, 0][i][j] == 0 and data[:, :, 1][i][j] == 0:
				data[:, :, 2][i][j] = 255 #Red
				data[:, :, 1][i][j] = 255 #Green
				data[:, :, 0][i][j] = 255 #Blue
			elif data[:, :, 2][i][j] == 0 and data[:, :, 0][i][j] > 0 and data[:, :, 1][i][j] == 0:
				data[:, :, 2][i][j] = 0  # Red
				data[:, :, 1][i][j] = 0  # Green
				data[:, :, 0][i][j] = 0  # Blue

Reference resources

Mark different colors for different objects （ Different versions labelme The running code is different , Let's follow the blog version ）

labelme Mark different objects and display different colors _ Fancheng's blog -CSDN Blog _labelme How to change the label color

install labelme4.2.9

Labelme Installation and usage guide _Marlowee The blog of -CSDN Blog _labelme install

json File transfer png picture （ In this paper, the Operation idea ）

json File transfer png picture （ Batch conversion / Picture name / transfer / Change pixel value ）【tips】_ Too simple blog -CSDN Blog