Notice

Shrinks photos, avoiding loss of important images as much as possible.

• Remove Width(px) : number of vertical lines to delete
• File : Select a photo to change. You can also enter an image URL in the input field (Example: https://i.pinimg.com/564x/94/7a/5c/ABCDEFGHIJKLMNOPQRSTUVWXYZ.jpg)
• Try it : Convert start button

Description

This feature uses the algorithm of https://github.com/mfbx9da4/seam-carving-js.

Seam carving is a content-aware image resizing technique used to adjust the size of an image while preserving its important content. Unlike traditional resizing methods that simply scale the image, seam carving intelligently removes or adds pixels along the least important paths, known as "seams," to resize the image without distorting or cropping important features.

The process of seam carving can be summarized as follows:

1. Energy Map Calculation: Initially, an energy map is computed for the image. The energy map represents the importance or significance of each pixel in the image and is typically derived from gradients or variations in color intensity. High-energy regions, where there are significant changes, correspond to important image features.
2. Finding the Least-Energy Seam: The algorithm then searches for the least-energy path or seam through the image, either vertically or horizontally. A seam is a connected path of pixels from the top to the bottom or left to right, and it contains the least important pixels based on the energy map.
3. Seam Removal or Insertion: After identifying the least-energy seam, it can be removed from the image to reduce its width or height. Conversely, a seam can be duplicated and inserted into the image to increase its size. The process is performed iteratively until the desired image size is achieved.

Seam carving is particularly useful for non-uniform image resizing, where traditional scaling methods may lead to distortion or loss of crucial image details. By intelligently removing or adding seams, the algorithm adapts the image resizing process to the image's content, preserving important regions and producing visually pleasing results.

This technique has applications in various domains, including image retouching, content-aware cropping, and aspect ratio adjustments in responsive web design. Seam carving has proven to be a powerful tool for content-aware image resizing, enabling more natural and adaptive resizing while retaining the image's essential visual information.