OT: scaling images

[Barry Wiseman]

On 8/22/2011 5:12 PM, Bill Campbell wrote:
> On Mon, Aug 22, 2011, Enrique Arredondo wrote:
>> Hi,
>>
>> I need to rescale lots of images keeping the same ratio, the output has to
>> be 1500x1500 and the problem I'm having is that if the image is 1500x634 ,
>> I don't know how to make that 1500-634 pixel difference white. Any Ideas ?
> I would look at the convert program which is part of the
> ImageMagick package.  It has many features, but I'm not sure if
> that's a possibility.
>
> Bill
Bill is absolutely correct, convert can do that for you.  Haven't done it in some years, so I don't recollect enough to give you example syntax, but there are command-line args that will position the 1500x634 image on a 1500x1500 canvas and specify the color of the canvas.