Enlarging a photograph shows off a good photograph, but never enlarge a photograph beyond its capability. When a picture is enlarged to a size it was not designed for, the quality of the image can suffer.
Enlarging a Photograph
Before digital photography, photo enlarging was done on a photo enlarger. The photo enlarger used the film from the camera, and light would be shone through the film onto a sheet of photo paper. The closer the film was to the paper, the smaller the image, the farther away, the larger the image. Enlarging a digital photograph requires photo editing software that can change the size of the image with the click of a button.
Resolution
The resolution of a photograph refers to the quality of the image. A low resolution image lacks definition in the fine details and has distortions in color. A high resolution image has a lot of definition, the fine details are clearly visible, the color is bright and the overall image looks good. Enlarging a photograph beyond its resolution capabilities can distort the image, blurring lines and details.
How Resolution Plays
When an image is enlarged, it is being stretched from its original proportions into new, larger proportions. In digital photography, resolution is represented by pixels per inch. The more pixels in an inch, the higher resolution the image will be. Three hundred ppi is the standard pixel per inch setting on a high resolution image while 72 ppi is the standard for a low resolution. When a digital image is enlarged, the number of pixels grows with it. No matter how large the dimensions of the photograph become, the number of pixels per inch stays the same.
Image Distortion
When an image is enlarged beyond the limits determined by the pixels, it starts to become distorted. The fine details within the image start blur, and the larger the image becomes, the more detail is lost. A low resolution image set at 72 ppi can be enlarged slightly for use in web photo galleries, sharing with friends and family in emails. A low resolution image would not be able to be enlarged to a size for printing because the 72 pixels in each inch aren't able to maintain the image quality. High resolution images can be enlarged to print sizes such as 8x10s or higher up to 16x20.
Avoiding Resolution Problems
The key to avoiding loss of quality when enlarging an image is to pay attention to the resolution and the dimensions of the image. A small, low resolution, image will not enlarge well, while a larger dimension, low resolution image might take being enlarged slightly. The best images to enlarge are high resolution/large dimension images. The quality of the photograph will not diminish, and the finished print will look fine.
Enlarging a photograph shows off a good photograph, but never enlarge a photograph beyond its capability. When a picture is enlarged to a size it was not designed for, the quality of the image can suffer.
Enlarging a Photograph
Before digital photography, photo enlarging was done on a photo enlarger. The photo enlarger used the film from the camera, and light would be shone through the film onto a sheet of photo paper. The closer the film was to the paper, the smaller the image, the farther away, the larger the image. Enlarging a digital photograph requires photo editing software that can change the size of the image with the click of a button.
Resolution
The resolution of a photograph refers to the quality of the image. A low resolution image lacks definition in the fine details and has distortions in color. A high resolution image has a lot of definition, the fine details are clearly visible, the color is bright and the overall image looks good. Enlarging a photograph beyond its resolution capabilities can distort the image, blurring lines and details.
How Resolution Plays
When an image is enlarged, it is being stretched from its original proportions into new, larger proportions. In digital photography, resolution is represented by pixels per inch. The more pixels in an inch, the higher resolution the image will be. Three hundred ppi is the standard pixel per inch setting on a high resolution image while 72 ppi is the standard for a low resolution. When a digital image is enlarged, the number of pixels grows with it. No matter how large the dimensions of the photograph become, the number of pixels per inch stays the same.
Image Distortion
When an image is enlarged beyond the limits determined by the pixels, it starts to become distorted. The fine details within the image start blur, and the larger the image becomes, the more detail is lost. A low resolution image set at 72 ppi can be enlarged slightly for use in web photo galleries, sharing with friends and family in emails. A low resolution image would not be able to be enlarged to a size for printing because the 72 pixels in each inch aren't able to maintain the image quality. High resolution images can be enlarged to print sizes such as 8x10s or higher up to 16x20.
Avoiding Resolution Problems
The key to avoiding loss of quality when enlarging an image is to pay attention to the resolution and the dimensions of the image. A small, low resolution, image will not enlarge well, while a larger dimension, low resolution image might take being enlarged slightly. The best images to enlarge are high resolution/large dimension images. The quality of the photograph will not diminish, and the finished print will look fine.
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