ImageEditor

Java CLI Based Image Editor

Overview

This Java program provides basic image processing operations. It allows users to perform various operations on images, including grayscale conversion, brightness adjustment, image rotation, and horizontal/vertical mirroring.

Functions

Original

Function 1 :convertToGrayscale

Description: Converts the input image to grayscale.

Algorithm:

• Get the height and width of the input image.
• Create a new grayscale image with TYPE_BYTE_GRAY.
• Iterate through each pixel:
  • Copy the pixel value from the input image to the grayscale output image.

Function 2: IncreaseBrightness

Description: Increases the brightness of the input image.

Algorithm:

• Get the height and width of the input image.
• Create a new color image with TYPE_3BYTE_BGR.
• Iterate through each pixel:
  • Get the color of the pixel at (col, row).
  • Extract the red, blue, and green components.
  • Increase brightness by a specified percentage.
  • Ensure RGB values stay within the valid range [0, 255].
  • Create a new Color with the adjusted RGB values.
  • Set the pixel in the output image.

Function 3: DecreaseBrightness

Description: Decreases the brightness of the input image.

Algorithm:

• Get the height and width of the input image.
• Create a new color image with TYPE_3BYTE_BGR.
• Iterate through each pixel:
  • Get the color of the pixel at (col, row).
  • Extract the red, blue, and green components.
  • Decrease brightness by a specified percentage.
  • Ensure RGB values stay within the valid range [0, 255].
  • Create a new Color with the adjusted RGB values.
  • Set the pixel in the output image.

Function 4: RotatetheImage

Description: Rotates the input image by 90 degrees.

Algorithm:

• Get the height and width of the input image.
• Create a new image with switched height and width.
• Iterate through each pixel:
  • Copy the pixel value from the input image to the output image, swapping coordinates.

Function 5: MirrortheImage

Description: Mirrors the input image horizontally.

Algorithm:

• Get the height and width of the input image.
• Create a new image with the same dimensions as the input image.
• Iterate through each pixel:
  • Copy the pixel value from the input image to the output image with the column index mirrored.

Function 6: MirrortheImageVertically

Description: Mirrors the input image vertically.

Algorithm:

• Get the height and width of the input image.
• Create a new image with the same dimensions as the input image.
• Iterate through each pixel:
  • Copy the pixel value from the input image to the output image with the row index mirrored.

Function 7: blurImage

Description: Blurs the input image using a simple averaging filter.

Algorithm:

• Get the height and width of the input image.
• Create a new image for the blurred result.
• Define a kernel size (e.g., 3x3).
• Iterate through each pixel:
  • Calculate the average color value within the kernel.
  • Set the pixel in the output image with the calculated average color.

Usage:

• Compile the Java code using: javac Main.java
• Run the program with: java Main
• Choose an operation by entering the corresponding number.
• Follow on-screen instructions for specific operations.
• The edited image will be saved as a new file with a relevant name.