[ITK] CanReadFile checks extension

[Matt McCormick]

Hi Marian,

Yes, most of the ImageIO's currently just use file extensions to check
if they can read a file.  However, contributions that improve this by
examining the header would be welcome.

Thanks,
Matt

On Wed, Feb 18, 2015 at 1:27 PM, Мар'ян Климов <nekto1989 at gmail.com> wrote:
> Hi all,
>
> I haven't looked at all IO, but JPEGImageIO and BMPImageIO are checking file
> extensions in CanReadFile and return false without looking into header if
> extension is wrong (or no extension is present). Is this expected behavior?
>
> Best regards,
> Marian
>
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