OK here is the best I can do if you have any questions please ask.
first you will need to download the free paint.net, to find it just search "paint.net" through your web browser after that is downloaded open it and select your image you wish to distort
to begin move your cursor to the top left and select "file" and then move your cursor and click "open" and open the image in the program
then move your cursor to the tab "image"
next move your cursor down on the opened tab to the selection "flip horizontal" and click on that
now go down to the color wheel and turn the color to a red, blue, yellow, green, etc.
now with the paint brush tool cover up any symbols or marking you wish to deplete
now go up to "file" and select "save as"
now you can lower the quality (if you wish to) I typically stick around "15"
Is it a Dassault Mirage G4-01 (G8-01), the 2 seat variant? The nomenclature is a little hard for me to follow since I have not found that particular photo to know if it was taken after the redesignation.