Prerequisites: Python GUI – tkinter, os.listdir() method, os.rename() method
In this article, the task is to rename a batch of images using Python. Now say given n images in a folder having random names. For example, consider the images below.
Now the requirement is to rename them in ordered fashion and appending their original dimensions of respective image like image-0-362×326, image-1-351×414, …and so on. Doing this manually would be a tedious task but this target can be achieved using the rename() and listdir() methods in os module.
rename() method
In Python 3, rename() method is used to rename a file or directory. This method is a part of the os module and comes in extremely handy.
Syntax: os.rename(src, dst)
Parameters:
src: It is the source address of the file to be renamed
dst: It is the destination with the new name.
listdir() method
The listdir method lists out all the content of a given directory.
Syntax: list = os.listdir(‘Src’)
Parameters:
Src: It is the source to be listed out
The following code will do the job for us. Using the Tkinter module it will ask for the folder path in which all the images are stored. It traverses through the lists of all the images in xyz folder, defines the destination (dst), and source (src) addresses, and renames using rename() method.
Below is the implementation.
Python3
# Python 3 code to rename multiple image# files in a directory or folder import os from tkinter import messageboximport cv2from tkinter import filedialogfrom tkinter import *height1 = 0width1 = 0# Function to select folder to rename imagesdef get_folder_path(): root = Tk() root.withdraw() folder_selected = filedialog.askdirectory() return folder_selected# Function to rename multiple filesdef submit(): source = src_dir.get() src_dir.set("") global width1 global height1 input_folder = get_folder_path() i = 0 for img_file in os.listdir(input_folder): file_name = os.path.splitext(img_file)[0] extension = os.path.splitext(img_file)[1] if extension == '.jpg': src = os.path.join(input_folder, img_file) img = cv2.imread(src) h, w, c = img.shape dst = source + '-' + str(i) + '-' + str(w) + "x" + str(h) + ".jpg" dst = os.path.join(input_folder, dst) # rename() function will rename all the files os.rename(src, dst) i += 1 messagebox.showinfo("Done", "All files renamed successfully !!")# Driver Codeif __name__ == '__main__': top = Tk() top.geometry("450x300") top.title("Image Files Renamer") top.configure(background ="Dark grey") # For Input Label input_path = Label(top, text ="Enter Name to Rename files:", bg ="Dark grey").place(x = 40, y = 60) # For Input Textbox src_dir = StringVar() input_path_entry_area = Entry(top, textvariable = src_dir, width = 50).place(x = 40, y = 100) # For submit button submit_button = Button(top, text ="Submit", command = submit).place(x = 200, y = 150) top.mainloop() |
Output :
