Re:

[James Sherman Jr.]

Sorry about that.  I didn't see that Soren replied to your resent message.

On Fri, Jul 24, 2009 at 9:08 AM, James Sherman Jr.<address@hidden> wrote:
> You are not going to be able to resize at 20x46 image to a 32x32 one
> "without distortion" because the ratio of length to width is
> different.  Its the same reason why they have widescreen editions of
> movies, because just simply resizing a regular tv image to a
> widescreen has to stretch the image.
>
> "Without distortion", you can only resize to some multiple of the
> original size of the image.
>
> I put without distortion in quotes, because you'll always get
> distortion of some form when resizing an image due to the method that
> you use.
>
> I don't know what exactly imcrop in Matlab does, but if you know the
> coordinates of the upper left corner and lower right corner of the
> image, you can simply do
> cropped_image = original_image(top_row:bottom_row, left_column:right_column, 
> :);
>
> I think that would be what you want.
>
> On Fri, Jul 24, 2009 at 6:55 AM, Anwesha Dastidar
> (Trainee)<address@hidden> wrote:
>> Hello,
>>
>> I am a beginner in image processing techniques. I have been trying to resize
>> a 20x46 bmp image to 32x32 bmp image in Octave. I used the imresize command
>> but it distorts the shape of the object.
>>
>> How do I resize without distorting the image?
>>
>> Also, is there any command available in Octave which allows us to crop an
>> image? (equivalent to imcrop() in Matlab which is undefined in Octave)
>>
>>
>>
>> Hope you can help,
>>
>> Thanks
>>
>> AGD
>>
>>
>>
>>
>>
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>