Image Processing Project with OCR in Android

We want to develop an android application. But there is an time restriction for that project. The features which should be developed for that project are below. But because of the time restriction, you can choose a feature in the below which you already developed. You should give me the feature or features in a couple of days(between 2-5 days). 1-) The user can take a picture from the Camera or choose a picture from the Photo Gallery 2-) If you use a custom camera view for taking a picture like CamScanner App, it will be an advantage to get the project 3-) After taking a picture from the Camera or choosing a picture from the Photo Gallery, it should detect the border of the A4 Sheet, Business Card, Credit Card, Identity Card or any kind of a rectangle shape like them from Camera feed in Android. In brief, it should find the border of them(page detection) and take the rectangle shape from the image. 4-) If you can detect the border of the a shape in the image, you should deskew the shape in the image. For example, the A4 Sheet in the image is skewed little. After finding the border of the A4 Sheet, the application should rotate the correct position like CamScanner. 5-) After taking a picture from the Camera or choosing a picture from the Photo Gallery, the application should convert it to black and white, not grayscale. You can check the sample black and white filter in CamScanner. 6-) After taking a picture from the Camera or choosing a picture from the Photo Gallery, there should be a view that the user can adjust the image setting like brightness, contrast, saturation, crop, rotate, or any nice feature. 7-) We have identity card, i want to find the card number in the identity card. For this reason, the application should OCR the image. You should use Tesseract or OpenCV for finding text in the image. 8-) Finally, the application should convert the image to tiff format. Please tell me which features you can support in a couple days(between 2-5 days). If you don't tell which features you can support in your bid (like 2,3,5), your offer will not be read. Please prove that you have already a solution for those features. Not: You can check the sample example for that Project in the Play Store: CamSanner