What are some tools that can convert images from black-and-white or grayscale mode to full color without losing quality or increasing the size of the original image? - Quora
![Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub](https://user-images.githubusercontent.com/6332437/86173903-b7fcc400-baee-11ea-99ef-52f3ae272ce2.png)
Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub
![Convert RGB Image to Grayscale Image by Using OpenCV Importer - MATLAB & Simulink - MathWorks América Latina Convert RGB Image to Grayscale Image by Using OpenCV Importer - MATLAB & Simulink - MathWorks América Latina](https://la.mathworks.com/help/examples/vision/win64/xxsimulink_opencv_ex_rgb2gray_model.png)
Convert RGB Image to Grayscale Image by Using OpenCV Importer - MATLAB & Simulink - MathWorks América Latina
![Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub](https://user-images.githubusercontent.com/6332437/86122982-b3acb880-baa6-11ea-81f5-b8e8fc48f7c4.png)
Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub
![Convert RGB Image to Grayscale Image by Using OpenCV Importer - MATLAB & Simulink - MathWorks América Latina Convert RGB Image to Grayscale Image by Using OpenCV Importer - MATLAB & Simulink - MathWorks América Latina](https://la.mathworks.com/help/examples/vision/win64/simulink_opencv_ex_rgb2gray_output.png)
Convert RGB Image to Grayscale Image by Using OpenCV Importer - MATLAB & Simulink - MathWorks América Latina
![Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub Need 1 channel grayscale image for finding contours in openCV · Issue #6726 · IntelRealSense/librealsense · GitHub](https://user-images.githubusercontent.com/6332437/86173430-f47bf000-baed-11ea-92ee-c675f3f42511.png)