Here's a README file for your Image Encryption Tool:

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Image Encryption Tool

Done By Anoop C Kulkarni

This Python program allows users to encrypt and decrypt images using pixel manipulation techniques. The tool performs operations such as adding or subtracting a key value from each pixel's RGB values to securely encrypt and decrypt images.

Features

• Encrypt Images: Encrypts an image by modifying each pixel's RGB values using a user-defined key.
• Decrypt Images: Decrypts an encrypted image by reversing the encryption process with the same key.
• Simple and Fast: Provides a straightforward method for image encryption using basic mathematical operations.

Requirements

• Python 3.x
• Pillow library for image processing

Installation

1. Clone the Repository (if hosted on a version control system like GitHub) or download the main.py file directly.
2. Install the Pillow library using pip:

   pip install pillow

Usage

1. Run the Program:

   • Open a terminal or command prompt.
   • Navigate to the directory containing main.py.
   • Run the program using the command:

     python main.py

2. Follow the Prompts:

   • Choose Operation: Enter E to encrypt an image or D to decrypt an image.
   • Enter the Image Path: Provide the full path to the image file you want to encrypt or decrypt. Ensure the path is correctly formatted (see Notes below).
   • Enter the Output Path: Provide the path where you want to save the output image.
   • Enter the Key: Provide an integer value to use as the key for encryption/decryption.

3. View the Output:

   • The program will save the encrypted or decrypted image to the specified output path.

Example

Encrypting an Image:

Image Encryption/Decryption Tool
Would you like to encrypt or decrypt an image? (E/D): E
Enter the path to the image file: C:/Users/anoop/OneDrive/Pictures/Screenshots/bcv.png
Enter the path to save the output image: C:/Users/anoop/OneDrive/Pictures/Screenshots/encrypted_bcv.png
Enter the encryption/decryption key (integer): 42
Encrypted image saved as C:/Users/anoop/OneDrive/Pictures/Screenshots/encrypted_bcv.png

Decrypting an Image:

Image Encryption/Decryption Tool
Would you like to encrypt or decrypt an image? (E/D): D
Enter the path to the image file: C:/Users/anoop/OneDrive/Pictures/Screenshots/encrypted_bcv.png
Enter the path to save the output image: C:/Users/anoop/OneDrive/Pictures/Screenshots/decrypted_bcv.png
Enter the encryption/decryption key (integer): 42
Decrypted image saved as C:/Users/anoop/OneDrive/Pictures/Screenshots/decrypted_bcv.png

Notes

• File Path Formatting:

  • On Windows, use forward slashes (/) instead of backslashes (\) to avoid escape character issues.
  • Alternatively, use raw strings by prefixing the file path with r, e.g., r"C:\path\to\image.png".

• Key:

  • The key used for encryption must be the same as the one used for decryption.

• Limitations:

  • This tool uses a basic encryption method. For highly sensitive data, consider using more advanced cryptographic techniques.

Contributing

Feel free to fork this project, submit issues, or contribute by creating pull requests.

Acknowledgements

This tool is a simple example of image encryption using pixel manipulation, inspired by basic cryptographic principles.