Sharpening is primarily used to enhance the overall sharpness and clarity of the image, making the details and textures more distinct and visually appealing.

Unsharp Mask is a widely used sharpening technique in travel photography due to its ability to selectively enhance the sharpness of edges and details while minimizing halos and artifacts.

The 'Amount' or 'Strength' parameter controls the overall intensity of the sharpening effect, allowing you to adjust the level of sharpness applied to the image.

The 'Radius' parameter determines the size of the area around each pixel that is sharpened, influencing the width of the edges and the overall sharpness of the image.

The 'Threshold' parameter sets the minimum difference in pixel values required for sharpening, helping to prevent over-sharpening and the creation of halos around edges.

High Pass Filter is often preferred for images with fine details and textures as it selectively enhances the high-frequency components of the image, resulting in sharper and more defined details.

Sharpening typically increases the file size of an image because it adds new data to enhance the edges and details, resulting in a larger file size.

Sharpening should be avoided when the image is already sharp and clear, when it contains a lot of noise, and when it has a low resolution, as these conditions can lead to over-sharpening and undesirable artifacts.

It is generally recommended to apply sharpening during post-processing using specialized software like Adobe Lightroom or Photoshop, as it provides more control and flexibility over the sharpening process compared to in-camera sharpening.

Unsharp Mask is known for its ability to reduce halos and artifacts compared to other sharpening techniques, making it a preferred choice for travel photography where sharp and clean images are desired.

Over-sharpening can be identified by the appearance of unnatural and exaggerated edges around objects in the image, resulting in a loss of detail and a harsh, artificial look.

A sharpening mask allows you to selectively apply sharpening to specific areas of the image, such as the eyes of a subject or the details of a landscape, while leaving other areas relatively untouched.

Gaussian Blur is often used for images with large areas of smooth, uniform color, as it helps to reduce noise and enhance the overall smoothness of the image without introducing excessive sharpening.

Sharpening can enhance the sense of depth and realism in a travel photograph by making the details and textures more distinct, creating a more immersive and engaging experience for the viewer.

Median Filter is known for its ability to preserve fine details while reducing noise in an image, making it a suitable choice for travel photography where both sharpness and noise reduction are important.