(The code involves three python files as stated below )

• resize.py

  Class change_and_save changes the spatial resolution of the images.

  It asks for corresponding deletion of original images from the user from the original image folder.

  The Parameters involved are :-

  • IM_FOLDER : Path to folder that contains all the images (type is PosixPath or WindowsPath)

  • OUTPUT_FOLDER : Path to folder that crops will be stored in (type is PosixPath or WindowsPath)

  • IM_OUT : Name of folder in which new images should be stored, under OUTPUT_FOLDER (type is string)

  • images_prefix : Prefix of all output resized images (type string)

  • pre_res : The original resolution to be entered by the user (type integer)

  • final_res : The final resolution in which it is to be converted (type is int)

  • width : Width of the image in pixels, to be entered by the user ( type int, None by default)

  • height : height of the image in pixels, to be entered by the user (type int, None by default)

  • images_ext : Extension with which crops should be saved with (type is string) Eg:'.png'

    Functions involved are ( names are self-explanatory ) :-

  • open_image

  • change_resolution : changes the resolution by respective multiplication of dimensions by the factor desired

  • make_dir

  • save_final_image

  • process : iterates over the image files in the input folder, also asks for user's choice to delete the original images or not

• cropping.py

  Class crop_and_save creates crops To crop an image (and the masks) into width_division*height_division number of images and store the output to OUTPUT_FOLDER The Parameters involved are :-

  • IM_FOLDER:Path to folder that contains all the images (type is PosixPath or WindowsPath)
  • MASK_FOLDER:Path to folder that contains all the masks (type is PosixPath or WindowsPath)
  • OUTPUT_FOLDER : Path to folder that crops will be stored in (type is PosixPath or WindowsPath)
  • IM_OUT : Name of folder in which cropped images should be stored, under OUTPUT_FOLDER (type is string)
  • MASK_OUT : Name of folder in which cropped masks should be stored, under OUTPUT_FOLDER (type is string)
  • width_division : Number of divisions to be put along width of the image (type is int)
  • height_division : Number of divisions to be put along height of the image (type is int)
  • size : Desired dimension of the output cropped images (type is int)
  • pre_resize : Dimension that original image should be resized to before cropping (typr is (int,int)) default is None, meaning no resizing will occur
  • resize_to : Dimension of final output image after cropping (type is (int,int)) default is None, meaning no resizing will occur
  • images_prefix : Prefix of all output Image crops (type is string)
  • images_ext : Extension with which crops should be saved with (type is string) Eg:'.png' Functions involved are (names are self explanatory ) :-
  • open_image
  • crop_image : crops the input image using basic mathematics by counting the number of overlaps which would be created
  • make_dir : makes an output directory if it is already not existing
  • save_image_crop
  • save_mask_crop
  • make_name : to generate names for the final images
  • presize : in case dont want to execute spatial resolution
  • resize : to resize the final crop
  • process : iterates over the images and masks to crop, resize and save them

• cropandresize.py

  The file to combine the functionalities of both other files. It firsts implements spatial resolution on the images (using an object of change_and_save) and then passes it on along with the masks for cropping (to cropping.py).

• pathlib : for retrieving and assigning paths to directories and images
• PIL : for opening, manipulating, and saving different image file formats
• cv2 : to solve computer vision problems and to integrate with other libraries that use Numpy
• pandas : for data manipulation and analysis
• tqdm : for progress bars
• numpy : for Scientific Computing of various data types
• os : for using operating system dependent functionality (like deletion of original images)

Some changes and updates are still in progress for better results and added features.

• sys : for using exit() function