> On Oct 5, 2016, at 1:10 PM, Fred Cisin <ci...@xenosoft.com> wrote:
>
> On Wed, 5 Oct 2016, Al Kossow wrote:
>> There are very few imaging programs that can handle an image that large.
>> You run into this with scans of blueprints.
>
> There you have TWO size issues. The original may have enormous physical
> dimensions.
>
> A well chosen image format shouldn't have much problem with file size, since
> the blueprint ia all B&W single bit, made up of line segments and text. An
> uncompressed bitmap would be ridiculously large, but some format to store the
> text and positions, and the line segments should be able to bring it down to
> very manageable size.
That's true, but Al was talking about programs processing those images. While
the file may be compressed, when opened and read into memory the full
uncompressed image is generated. And it might well be a byte per pixel even
for B&W images, because that makes the code simpler and much faster. That
said, images in the 100 megapixel range are not much trouble for modern
computers. Lots of gigapixels, that might be different.
paul
