People are usually afraid of working of plain Jpeg on their PCs after they collect them in that format from their digital photography apparatus, and are inclined in directly transforming them to tiff.
In fact, when you first got your pictures from the camera, transforming them is never the first step. The images downloaded from the camera might be a compressed JPG that will be stored on the hard drive. The image that is read by the virtual memory is uncompressed. Only at the time you want to save the edited image from you PC’s virtual memory you might raise the problem of file format: jpg, gif, tiff, png and so on. When you save the image, if you choose the option JPG, the memory image will get compressed using the JPG algorithm, but the image will still remain uncompressed in computer’s memory and it will reflect the original image along with all the processed changes you brought to it, without losing any information through the saving process. Only the saved JPG has less information because of the compression, what is located in the computer’s memory is unchanged as long as you save the file under a new name.
It’s normal to make intermediary saves when changing a photo’s appearance because you never know what could go wrong. But when making these saves, be sure you make them under a digital photography format that does not only allow you to keep the image quality but can also save the image layers you might be working on. So this basically means you should save the intermediary images in the format that is specific to your photo editing software. Failing to do this will return an intermediary save that acts just like another image. And finally, when you think you are done, choose a final saving format for the image from the conventional ones.
Another myth that is not true is the one that states cropping a digital photography image can modify its pixels. Cropping results may turn up better or worse than the original, but it all depends on the functions used There are shrinking algorithms that eliminate extra pixels, and enlarging ones that make the pixel dots bigger. photo printing online
