Resize images maintaining focus and sharpness

Vote, make private/public, delete an image
Use the icons in the actions pane to vote up or down for the image. If it's your own picture use the icons to make it private/public or delete it.

Cropping
To select a portion of the image use crop when logged in. When the option is available (correct aspect ratio) you will be able to crop the middle of the image automatically even if not logged in.

Smoothing and Reducing Noise
The effects (smoothing & denoise) apply only when zooming an image. If it is already large enough the image is only shrank. By default a very low level of smoothing is applied on soft parts of the image. This can be disabled only in the offline application.
If you have a noisy photo use denoise. For a degraded or low resolution image use more smoothing (higher values for smooth).

Zoom factors
Normally the image is resized to maximum 3 times the original/cropped size. Any picture below 800x600 can be resized to this resolution if it doesn't require more than 6x zoom.

High quality resizing
Resizes below 800x600 are created at higher quality. Also highly ranked images, 5 votes or more and frequently resized ones benefit from this. Smoothing and denoising will be disabled when in high quality mode. There may be a delay before the higher quality is available.