Changeset 32725 for trunk/psLib/src/imageops/psImageConvolve.h

Timestamp:

Nov 20, 2011, 3:55:38 PM (14 years ago)

Author:

eugene

Message:

create a pre-alloc version of image smooth to avoid excessive allocs

File:

• trunk/psLib/src/imageops/psImageConvolve.h (modified) (2 diffs)

trunk/psLib/src/imageops/psImageConvolve.h

@@ -25 +25 @@
 #define PS_TYPE_KERNEL_DATA F32        ///< the data member to use for kernel image */
 #define PS_TYPE_KERNEL_NAME "psF32"    ///< the data type for kernel as a string */
+
+/// a structure to contain data related to image smoothing with a 1D gauss kernel
+typedef struct {
+    int Nx;
+    int Ny;
+    int Nrange;
+    psF32 *resultX;
+    psF32 *resultY;
+    psVector *kernel;
+} psImageSmooth_PreAlloc_Data;
 
 /// A convolution kernel
@@ -277 +287 @@
 );
 
+psImageSmooth_PreAlloc_Data *psImageSmooth_PreAlloc_DataAlloc (psImage *image, double sigma, double Nsigma);
+bool psImageSmooth_PreAlloc_F32(psImage *image, psImageSmooth_PreAlloc_Data *smdata);
+
 /// Control threading for image convolution functions
 ///