Write an Android application

An app is required to get the measurements of a person for apparel designing. The actual product(apparel) is targeted for school students and there is a need to do the measurement process faster. To explain it better, the device is to be fixed at a specific spot from the person whose waistline and height of their knees are to be measured. Once a photo is clicked of the person from say, 5 meters distance(which is fixed) 4 coordinates have to be fixed(2 for defining the waistline and 2 for knee height). There would be a specific ratio of the real-time measurement to the distance of the coordinates. This needs to be researched about and when the coordinates are locked, the waist size and the knee measurement must be returned on the screen. It is alright if the app works on a specific mobile as there might be variations in the screen size leading to a change in ratio. I guess that's it!