Q. How can I enlarge images without losing
Did you ever try to enlarge a picture, only to
have it print out looking "digitized," with jagged edges or blurry
details? This is caused by the formatting of the original picture - not
your computer or software. If the image has a high pixel count and a
resolution," (like 300dpi), you can make it bigger using your
photo/graphics software without losing quality.
But, quality becomes a problem when the original
image has a low "embedded resolution." When software changes the size
of an image but keeps the same number of pixels, it is called resizing.
Resizing a low resolution image to a larger size will cause jagged
outlines, because every pixel is being replicated to make larger blocks
Software that increases the image size by
analyzing the existing pixels and then creating new pixels with "best
guess" approximations of the proper shading is said to be resampling.
Enlarging requires the software to “invent” pixels (called
interpolation) based on the existing pixels, and the result is
generally a blurring of detail.
Your image editing software may offer alternative
resampling methods, such as Bicubic, Bilinear or Nearest Neighbor.
Bicubic is probably the most satisfying, but you can experiment and
What to do when you have to blow up a low resolution image, and it gets
blurry? Call it art! Many graphics and photo programs have
“enhancement” tools that change images with watercolor or chalk
techniques, brush strokes, black & white or sepia coloring,
etc. Run your blurry image through some of those and you may find a
version you like even better.