how to change the resolution of a picture on mac

On the flip side, you may want to decrease the resolution of your images before putting them online. You can read our article on image resoluton to help you figure out how large you can print an image. But I may want to make a large print of this image. Knowing how far you can go takes some practice and trial and error.įor instance, if I’ve cropped in a lot on an image, this lowers the number of pixels in my image. It all depends on the amount of detail in the image and its purpose. This means you can start to see the individual dots that make up the image. It becomes pixelated if you try to increase the image size too much. You can take a low-resolution image, one with fewer pixels, and increase the resolution. The more dots (or pixels) you have per inch, the higher the resolution of your image.īefore I show you how to resize your images, let’s briefly talk about how large or small you’d like to make your images. The resolution of an image is measured in DPI or PPI (dots per inch or pixels per inch). But it usually results in larger file sizes. The results are smooth, continuous tones and color transitions. High resolution gives you more detail and better image quality. This is because pixel information is denser. More pixels in an image mean high resolution. So an image will have a lower resolution than your camera can produce. If you crop an image, you are taking out pixels. The result is the number of megapixels the camera has. That means the total pixel dimensions are 8256 x 6192 = 51,121,152. Your camera produces images of a certain size depending on its sensor size and pixel density.įor example, my camera manual says the image resolution is 8256 x 6192 pixels (width x height). Resolution is the number of pixels in dimensions of height and width. Buy from Unavailable How to Increase The Resolution of An Image in Photoshop

How to change the resolution of a picture on mac