<div>I also have one concern.</div><div>In fact, I want to use memcpy. to do such operation memcpy( imgDest->GetBufferPointer(), imgDrc->GetBufferPointer(), sizrof(pixelType) * x_size*y_size*z_size)</div><div> </div>
<div>Can we make sure img->GetBufferPointer() is continuous?;</div><div>That means , ITK will allocate memory continuously? </div><div>I guess, ITK should support allocate memory slice by slice.</div><div><br></div><div>
anyone can confirm it?</div><div><br></div><div>Best</div><div>dongfeng<br><br></div><div><br><div class="gmail_quote">On Sun, Apr 17, 2011 at 2:11 PM, Neil Panjwani <span dir="ltr"><<a href="mailto:paniwani@gmail.com">paniwani@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">I have some code that treats images as arrays. Using GetBufferPointer() works perfectly. You can in fact set the value using the normal notation:<div>
<br></div><div>PixelType * imgArray = img->GetBufferPointer();</div><div>
<br></div><div>imgArray[100] = 1;</div><div><br></div><div>I don't think there is any padding. I'm unfamiliar with the ImportImageFilter.</div><div><br></div><font color="#888888"><div>- Neil</div></font><div><div>
</div><div class="h5"><div><br><div class="gmail_quote">On Sun, Apr 17, 2011 at 5:06 AM, Francis Girard <span dir="ltr"><<a href="mailto:francis.girard07@gmail.com" target="_blank">francis.girard07@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<div><br></div><div>Can we iterate safely using this raw buffer pointer?</div><div><br></div><div>Maybe there is some padding to ensure some byte alignment property?</div>
<div><br></div><div>Also if there is a GetBufferPointer notice that there is no SetBufferPointer. So I don't think you can just set some buffer pointer as is the case with some C++ STL containers. With that API, you will at least need to make a copy of the contents, and even then we must make sure that there is enough allocated memory.</div>
<div><br></div><div>After all, what would be the usefulness of the "ImportImageFilter" if we could simply and safely set a raw buffer pointer?</div><div><br></div><div>And finally what precisely the "ImportImageFilter" does under the hood? Apprently it does _NOT_ make a copy of your buffer pointer. So maybe that is fast. But I am not sure of what I am saying.</div>
<div><br></div><div>Thanks</div><div><br></div><font color="#888888"><div>Francis</div></font><div><div></div><div><div><br></div><div><br></div><div><br><br><div class="gmail_quote">2011/4/17 Neil Panjwani <span dir="ltr"><<a href="mailto:paniwani@gmail.com" target="_blank">paniwani@gmail.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">You can access the image in 1D C++ array form using the GetBuferPointer() function.<div><br></div><div>- Neil<br><div>
<br><div><div><br><div class="gmail_quote"><div><div></div><div>On Sat, Apr 16, 2011 at 8:53 PM, Dongfeng Han <span dir="ltr"><<a href="mailto:handongfeng@gmail.com" target="_blank">handongfeng@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div></div><div>Hello everyone,<br>Anyone know how to fast assign ITK image data to an c++ array?<br>
The common approach is to use the iterator of the ITK image and assign the c++ array.<br>
Any other fast way?<br>Best<br>df<br><br>
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