image magik commands | reduce noise from images after resizing | Cell 2 | Search

This code uses ImageMagick commands to process and convert an image file, involving resizing, compressing, enhancing, and despeckling the image. The code consists of three ImageMagick commands and a final echo command that prints "done" to the console.

Cell 1


convert /Users/briancullinan/jupyter_ops/.output/IMG_6104.jpeg -scale 50% -quality 50% /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg && \

convert /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg +clone -enhance -despeckle -alpha on -channel alpha -evaluate multiply 0.25 -composite /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg

#convert /Users/briancullinan/jupyter_ops/.output/IMG_6104.jpeg +clone -scale 200% -enhance -despeckle -alpha on -channel alpha -evaluate multiply 0.25 -composite -sampling-factor 4:2:2 -strip -scale 200% -quality 10% -interlace JPEG -colorspace sRGB /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg

echo "done"

What the code could have been:

#!/bin/bash

INPUT_IMAGE_DIR="/Users/briancullinan/jupyter_ops/.output"
INPUT_IMAGE_FILE="IMG_6104.jpeg"
OUTPUT_FILE="${INPUT_IMAGE_DIR}/IMG_6104-final.jpg"

# Resize the image
convert "${INPUT_IMAGE_DIR}/${INPUT_IMAGE_FILE}" -scale 50% -quality 50% "${OUTPUT_FILE}" && \

# Enhance the image
convert "${OUTPUT_FILE}" +clone -enhance -despeckle -alpha on -channel alpha -evaluate multiply 0.25 -composite "${OUTPUT_FILE}" && \

# Print a success message
echo "done"

Code Breakdown

This code appears to be a series of ImageMagick commands used for image processing and conversion.

Command 1: Resize and Compress Image

convert /Users/briancullinan/jupyter_ops/.output/IMG_6104.jpeg -scale 50% -quality 50% /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg

convert: The ImageMagick command for image processing.
/Users/briancullinan/jupyter_ops/.output/IMG_6104.jpeg: The source image file.
-scale 50%: Resizes the image to 50% of its original size.
-quality 50%: Sets the output image quality to 50%.
/Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg: The output image file.

Command 2: Enhance and Despeckle Image

convert /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg +clone -enhance -despeckle -alpha on -channel alpha -evaluate multiply 0.25 -composite /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg

+clone: Creates a duplicate of the input image.
-enhance: Enhances the image.
-despeckle: Removes speckles from the image.
-alpha on: Enables the alpha channel (transparency).
-channel alpha: Selects the alpha channel for processing.
-evaluate multiply 0.25: Multiplies the alpha channel values by 0.25.
-composite: Combines the cloned image with the original image.
/Users/briancullanan/jupyter_ops/.output/IMG_6104-final.jpg: The output image file.

Command 3 (Commented Out): Alternative Image Processing

#convert /Users/briancullinan/jupyter_ops/.output/IMG_6104.jpeg +clone -scale 200% -enhance -despeckle -alpha on -channel alpha -evaluate multiply 0.25 -composite -sampling-factor 4:2:2 -strip -scale 200% -quality 10% -interlace JPEG -colorspace sRGB /Users/briancullinan/jupyter_ops/.output/IMG_6104-final.jpg

This command appears to be an alternative image processing sequence, but it is commented out.

Final Command: Echo "done"

echo "done"

This command simply prints "done" to the console.