Is changing Digital Photos Images Safe for Image Quality?
Choosing an Underwater Digital Camera>>Some say that after you have your high quality, high resolution pictures and you want to put them on your hard drive and work on them for a little bit, it’s best to transform first the Jpeg files that come from you camera to tiff or other appropriate format, because working on jpegs might cause you to loose quality and color.
In fact, when you first got your pictures from the camera, transforming them is never the first step. Usually camera save pictures as JPG, and this is the format you will see on your hard drive The image that is read by the virtual memory is uncompressed. deciding if you want a jpg or png or tiff or other extensions should be a worrying matter only when you are prepared to save the changes. Compressing during a save does not affect the quality of the initial uncompressed image with the changes it now has that is still located in the virtual memory and will remain there until you close the editing program. What you have in the computer memory is not affected by a save during editing, as long as you use a different name for the new file.
The main idea is that you should make intermediary saves while you work, so you can get a sort of restore point, from witch you can continue work in case something goes wrong. These intermediary save will always be done under a format that is especially made for editing, that saves both quality and allows changes to become editable. The best thing is to choose the format that is recommended by the editing software you are currently using. Failing to do this will return an intermediary save that acts just like another image. Only at the end save the image in as a standard picture file, JPG, TIFF, GIF, depending on its purpose.
Another myth that is not true is the one that states cropping a digital photography image can modify its pixels. Rotating and resizing the image will produce the generation of a new image, based on the old one, and the result will be better or worse depending on the algorithm used. There are shrinking algorithms that eliminate extra pixels, and enlarging ones that make the pixel dots bigger. photo printing online
