![[Graphics:../HTMLFiles/index_256.gif]](../HTMLFiles/index_256.gif)
The selected area by using area selection tool is now returned as an ImageData.
In[97]:=
![id2 = GetAreaSelectionBoundsImageData[frame]](../HTMLFiles/index_259.gif){kind=small}
The same image is shown again through this ImageData.
In[98]:=
![Show[Graphics[id2]]](../HTMLFiles/index_263.gif){kind=small}
Function to apply filter operation to the region of interest is defined.
In[99]:=
![ApplyFilter[filterFunc_, image_, roi_] := filterFunc[image, roi]](../HTMLFiles/index_264.gif){kind=small}
In[100]:=
![filterThreshold[image_, roi_] := If[image =!= Null && roi =!= Null, RegionProcessing[Threshold[#, 164, {0, 255}] &, image, roi], Null]](../HTMLFiles/index_265.gif)
The Polygon[ ] poly derived from the Java Photo Editor is used as the region of interest in this case.
In[101]:=
![poly = GetAreaSelectionAsPolygon[frame]](../HTMLFiles/index_268.gif){kind=small}
In[102]:=
![rid = ApplyFilter[filterThreshold, id2, poly] ;](../HTMLFiles/index_269.gif){kind=small}
The result ImageData is shown.
In[103]:=
![Show[Graphics[rid]]](../HTMLFiles/index_273.gif){kind=small}
Converted by Mathematica (July 17, 2003)