How to use the command "pamoil" (with examples)

The “pamoil” command is a tool that can be used to turn a PAM image into an oil painting. It applies an oil painting effect to the input image, giving it a unique and artistic appearance. The command provides an option to specify a neighborhood size for the smearing effect, allowing for further customization and control over the final result.

Use case 1: Turn a PAM image into an oil painting

Code:

pamoil path/to/input_file.pam > path/to/output_file.pam

Motivation:

This use case is for converting a PAM image into an oil painting. It can be used to transform a regular image into a more artistic representation, imitating the texture and appearance of an oil painting. This can be useful for creative projects or to add a unique touch to digital artwork.

Explanation:

• pamoil: The command to invoke the pamoil tool.

• path/to/input_file.pam: The path to the input PAM image file that you want to convert into an oil painting.

• >: The output redirection operator, used to redirect the output of the pamoil command to a file.

• path/to/output_file.pam: The path where the output oil painting image file will be saved.

Example output:

After running the command pamoil path/to/input_file.pam > path/to/output_file.pam, the input PAM image will be processed and saved as an oil painting image at the specified output file path.

Use case 2: Consider a neighborhood of N pixels for the “smearing” effect

Code:

pamoil -n N path/to/input_file.pam > path/to/output_file.pam

Motivation:

In some cases, you may want to have more control over the “smearing” effect applied during the oil painting conversion process. By specifying a neighborhood size (N), you can customize the level of smearing, adjusting it to your preference or the specific requirements of your project.

Explanation:

• pamoil: The command to invoke the pamoil tool.

• -n N: The -n option followed by the desired neighborhood size (N). This option allows you to consider a neighborhood or local region of N pixels when applying the smearing effect. Smearing is a technique used in oil painting to create blending and texture, and adjusting the neighborhood size can alter the level and intensity of the effect.

• path/to/input_file.pam: The path to the input PAM image file that you want to convert into an oil painting.

• >: The output redirection operator, used to redirect the output of the pamoil command to a file.

• path/to/output_file.pam: The path where the output oil painting image file will be saved.

Example output:

After running the command pamoil -n N path/to/input_file.pam > path/to/output_file.pam, the input PAM image will be processed, applying the oil painting effect with the specified neighborhood size. The resulting image will be saved at the specified output file path. The level of smearing and blending will be determined by the chosen neighborhood size (N), providing a customized and unique oil painting look.