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Tutorial: Enlarge an image with little loss using Gimp

The tutorial Today is one of those simple tutorials that are exhausted in a passage. More than a tutorial would call advice useful to remember.

Let's say you have a picture medium / small, not suitable for printing, we want larger than twice. Until today I expanded work space with “Picture” – “Scale Image” and inserting the double values, but I just recently discovered a way to resize them in excess with a higher yield using G’MIC, the plugins that we had already discussed, that does it all.

Let's say you have a picture very small, 150×200 px. Of course we all know that is impossible to enlarge a small image without loss, and even this procedure is not without loss of information, on the other hand applies the small improvements to “simulate” magnification without loss. (more…)

Photography: techniques for the reduction of “Digital Noise”

In today's tutorial we talk about photography. How many times has it happened to take pictures, affect them on the display of the camera and see them in good condition, then download them on the computer and realize the presence of the noise in the picture.

The digital noise present in the photo is the deterioration which can range from small disturbance barely visible, the disturbo “a puntini” very annoying to see how we will see in the next image it shows how the quality of the image may change, changing the ISO. (more…)