Obscuring marker-outlined free-form areas of a document

1. A method of eliminating one or more outlined sections of a document before printing, the method comprising:

receiving an input image of the document including the one or more outlined sections and a user input indicating color information of one or more outlines;

identifying the one or more outlines and the one or more outlined sections of the input image;

obtaining the one or more outlined sections associated with the one or more outlines of the input image; and

outputting an output image to be printed, wherein the one or more outlined sections are eliminated from the output image of the document.

2. The method of claim 1 , wherein the input image is stored as a matrix of Red-Green-Blue (RGB) values, which is converted and stored as a matrix of Hue-Saturation-Value (HSV) color space values representing the RGB matrix.

3. The method of claim 2 , further comprising generating a first mask from the HSV color space values to identify the one or more outlines of the one or more outlined sections, the one or more outlines having color lying within a lower range and an upper range of the HSV color space values of the color of the one or more outlines.

4. The method of claim 2 , further comprising generating a second mask of the one or more outlined sections of the input image including filling an external contour of the first mask with the color of the one or more outlines in a temporary copy of the input image and converting the temporary copy to HSV color space values.

5. The method of claim 1 , wherein the output image is obtained by performing a Bitwise OR operation between an altered copy of the input image and a background image.

6. The method of claim 5 , wherein the altered copy of the input image is generated by performing a Bitwise AND operation between a copy of the input image and a bitwise inverted copy of the second mask of the one or more outlined sections of the input image.

7. The method of claim 5 , wherein the background image is obtained by a Bitwise AND operation between an image with all white pixels and a Blue Green Red (BGR) image obtained from the second mask of the one or more outlined sections.

8. A system for eliminating one or more outlined sections of a document before printing, the system comprising:

one or more processors; and

a memory storing processor-executable instructions that, when executed by the one or more processors, configure the one or more processors to:

receive an input image of the document including the one or more outlined sections and a user input indicating color information of one or more outlines;

identify the one or more outlines and the one or more outlined sections of the input image;

obtain the one or more outlined sections associated with the one or more outlines of the input image; and

output an output image to be printed, wherein the one or more outlined sections are eliminated from the output image of the document.

9. The system of claim 8 , wherein the input image is stored as a matrix of Red-Green-Blue (RGB) values, which is converted and stored as a matrix of Hue-Saturation-Value (HSV) color space values representing the RGB matrix.

10. The system of claim 9 , further comprising instructions that generate a first mask from the HSV color space values to identify the one or more outlines of the one or more outlined sections, the one or more outlines having color lying within a lower range and an upper range of the HSV color space values of the color of the one or more outlines.

11. The system of claim 9 , further comprising instructions that generate a second mask of the one or more outlined sections of the input image including filling an external contour of the first mask with the color of the one or more outlines in a temporary copy of the input image and converting the temporary copy to HSV color space values.

12. The system of claim 8 , wherein the output image is obtained by performing a Bitwise OR operation between an altered copy of the input image and a background image.

13. The system of claim 12 , wherein the altered copy of the input image is generated by performing a Bitwise AND operation between a copy of the input image and a bitwise inverted copy of the second mask of the one or more outlined sections of the input image.

14. The system of claim 12 , wherein the background image is obtained by a Bitwise AND operation between an image with all white pixels and a Blue Green Red (BGR) image obtained from the second mask of the one or more outlined sections.