diff --git a/build_linux64/libamscppimglib4.linux64.a b/build_linux64/libamscppimglib4.linux64.a
index c18cf65..566fdb7 100644
Binary files a/build_linux64/libamscppimglib4.linux64.a and b/build_linux64/libamscppimglib4.linux64.a differ
diff --git a/build_linux64/objstore/amscppimglib4_amsbitplane.o b/build_linux64/objstore/amscppimglib4_amsbitplane.o
index c184851..3fd3789 100644
Binary files a/build_linux64/objstore/amscppimglib4_amsbitplane.o and b/build_linux64/objstore/amscppimglib4_amsbitplane.o differ
diff --git a/build_linux64/objstore/amscppimglib4_intlutil.o b/build_linux64/objstore/amscppimglib4_intlutil.o
index 6f9dba3..18a2ccb 100644
Binary files a/build_linux64/objstore/amscppimglib4_intlutil.o and b/build_linux64/objstore/amscppimglib4_intlutil.o differ
diff --git a/build_linux64/tests b/build_linux64/tests
index 61411a9..f6c0add 100644
Binary files a/build_linux64/tests and b/build_linux64/tests differ
diff --git a/include/amscppimglib4/amscppimglib4.hpp b/include/amscppimglib4/amscppimglib4.hpp
index 939eab5..6e7702a 100644
--- a/include/amscppimglib4/amscppimglib4.hpp
+++ b/include/amscppimglib4/amscppimglib4.hpp
@@ -96,6 +96,9 @@ namespace ams
         int Nx,Ny;
         uint8_t *data; //[x+width*y]
 
+        int &width; //aliases for Nx,Ny
+        int &height;
+
         amsbitplane();
         ~amsbitplane();
         amsbitplane(const amsbitplane& other);
@@ -104,11 +107,11 @@ namespace ams
         amsbitplane& operator=(amsbitplane&& other) noexcept;
 
         int resize(int _Nx, int _Ny);
-        void transpose();
-        void rotcw();
-        void rotccw();
-        void flipx();
-        void flipy();
+        amsbitplane transpose();
+        amsbitplane rotcw();
+        amsbitplane rotccw();
+        amsbitplane flipx();
+        amsbitplane flipy();
         
         uint8_t get(int I, int J) const;
         int set(int I, int J, uint8_t val);
@@ -123,13 +126,11 @@ namespace ams
         void clear();
 
         //rescales the image with linear interpolation
-        int rescale(int nnx, int nny);
+        int rescale(int _Nx, int _Ny);
     };
 
 
-    //Tests//
 
-    void amscppimglib_test1();
 
 }; //end namespace ams
 
diff --git a/include/amscppimglib4/amscppimglib4_intlutil.hpp b/include/amscppimglib4/amscppimglib4_intlutil.hpp
index 747700b..535142d 100644
--- a/include/amscppimglib4/amscppimglib4_intlutil.hpp
+++ b/include/amscppimglib4/amscppimglib4_intlutil.hpp
@@ -80,6 +80,30 @@ void amsimage_region_set(
     amspixel val
 );
 
+void amsimage_plane_copy(
+    uint8_t *datato,
+    int Ipto,
+    int Npto,
+    int Nxto,
+    int Nyto,
+    const uint8_t *datafrom,
+    int Ipfrom,
+    int Npfrom,
+    int Nxfrom,
+    int Nyfrom,
+    int offsetx,
+    int offsety
+);
+
+void amsimage_planeregion_set(
+    uint8_t *data,
+    int Np, int Nx, int Ny,
+    int Ip,
+    int x0, int y0,
+    int x1, int y1,
+    uint8_t val
+);
+
 
 
 
diff --git a/src/amscppimglib4/amscppimglib4_amsbitplane.cpp b/src/amscppimglib4/amscppimglib4_amsbitplane.cpp
index 616ffb6..c4c1ab8 100644
--- a/src/amscppimglib4/amscppimglib4_amsbitplane.cpp
+++ b/src/amscppimglib4/amscppimglib4_amsbitplane.cpp
@@ -1,8 +1,145 @@
 #include <amscppimglib4/amscppimglib4.hpp>
+#include <amscppimglib4/amscppimglib4_intlutil.hpp>
 
 namespace ams
 {
 
+    amsbitplane::amsbitplane() : Nx(0), Ny(0), data(NULL), width(Nx), height(Ny)
+    {
+        return;
+    }
+
+    amsbitplane::~amsbitplane()
+    {
+        if(data!=NULL) {delete[] data; data=NULL;}
+        Nx = 0;
+        Ny = 0;
+        return;
+    }
+
+    amsbitplane::amsbitplane(const amsbitplane& other) : Nx(0), Ny(0), data(NULL), width(Nx), height(Ny)
+    {
+        int res;
+        if(this!=&other)
+        {
+            res = this->resize(Nx,Ny);
+            if(res==amsimage_success)
+            {
+                imglib4::amsimage_plane_copy(
+                    this->data, 0, 1, Nx, Ny,
+                    other.data, 0, 1, other.Nx, other.Ny,
+                    0,0
+                );
+            }
+        }
+        return;
+    }
+
+    amsbitplane::amsbitplane(amsbitplane&& other) noexcept : Nx(0), Ny(0), data(NULL), width(Nx), height(Ny)
+    {
+        if(this!=&other)
+        {
+            this->Nx = other.Nx;
+            this->Ny = other.Ny;
+            this->data = other.data;
+
+            other.Nx = 0;
+            other.Ny = 0;
+            other.data = NULL;
+        }
+        return;
+    }
+    
+    amsbitplane& amsbitplane::operator=(const amsbitplane& other)
+    {
+        int res;
+        if(this!=&other)
+        {
+            res = this->resize(Nx,Ny);
+            if(res==amsimage_success)
+            {
+                imglib4::amsimage_plane_copy(
+                    this->data, 0, 1, Nx, Ny,
+                    other.data, 0, 1, other.Nx, other.Ny,
+                    0,0
+                );
+            }
+        }
+        return *this;
+    }
+    
+    amsbitplane& amsbitplane::operator=(amsbitplane&& other) noexcept
+    {
+        if(this!=&other)
+        {
+            if(this->data!=NULL) {delete[] this->data; this->data=NULL;}
+            this->Nx = 0; this->Ny = 0;
+
+            this->Nx = other.Nx;
+            this->Ny = other.Ny;
+            this->data = other.data;
+
+            other.Nx = 0;
+            other.Ny = 0;
+            other.data = NULL;
+        }
+        return *this;
+    }
+
+    int amsbitplane::resize(int _Nx, int _Ny)
+    {
+        int ret = amsimage_success;
+        
+        uint8_t *newdata = NULL;
+
+        _Nx = (_Nx<0) ? 0 : _Nx;
+        _Ny = (_Ny<0) ? 0 : _Ny;
+
+        if(_Nx == Nx && _Ny == Ny)
+        {
+            return ret; //no resize necessary
+        }
+
+        if(_Nx==0 || _Ny == 0)
+        {
+            //zero size image
+            if(data!=NULL) {delete[] data; data=NULL;}
+            Nx = 0;
+            Ny = 0;
+            return ret;
+        }
+        
+        newdata = new(std::nothrow) uint8_t[_Nx*_Ny];
+        if(newdata==NULL)
+        {
+            ret = amsimage_failure;
+            return ret;
+        }
+
+        imglib4::amsimage_planeregion_set(
+            newdata,
+            1,_Nx,_Ny,0,
+            0,0,_Nx,_Ny,
+            0
+        );
+
+        if(data!=NULL)
+        {
+            imglib4::amsimage_plane_copy(
+                newdata,0,1,_Nx,_Ny,
+                data,0,1,Nx,Ny,
+                0,0
+            );
+        }
+
+        if(data!=NULL) {delete[] data; data=NULL;}
+        data = newdata;
+        Nx = _Nx;
+        Ny = _Ny;
+
+        return ret;
+    }
+
 
 
 };
\ No newline at end of file
diff --git a/src/amscppimglib4/amscppimglib4_intlutil.cpp b/src/amscppimglib4/amscppimglib4_intlutil.cpp
index dbbe48e..ec37cb9 100644
--- a/src/amscppimglib4/amscppimglib4_intlutil.cpp
+++ b/src/amscppimglib4/amscppimglib4_intlutil.cpp
@@ -32,7 +32,7 @@ namespace imglib4
 
         N = dx*dy;
 
-        Is = N/nthreads;
+        Is = N/nthreads; Is = (Is<1) ? 1 : N;
         I0 = (threadnum)*Is;
         I1 = (threadnum<nthreads-1) ? (threadnum+1)*Is : N;
 
@@ -116,7 +116,7 @@ namespace imglib4
         dy = (dy<0) ? 0 : dy;
         N = dx*dy;
 
-        Is = N/nthreads;
+        Is = N/nthreads; Is = (Is<1) ? 1 : N;
         I0 = (threadnum)*Is;
         I1 = (threadnum<nthreads-1) ? (threadnum+1)*Is : N;
 
@@ -163,7 +163,160 @@ namespace imglib4
         return;
     }
 
+    void amsimage_plane_copy_tf(
+        int threadnum,
+        int nthreads,
+        uint8_t *datato,
+        int Ipto,
+        int Npto,
+        int Nxto,
+        int Nyto,
+        const uint8_t *datafrom,
+        int Ipfrom,
+        int Npfrom,
+        int Nxfrom,
+        int Nyfrom,
+        int offsetx,
+        int offsety
+    )
+    {
+        int64_t I,I0,I1,Is,N,Ix,Iy,Ia,Ib;
+        int dx,dy;
+
+        dx = Nxfrom;
+        dx = (dx>(Nxto-offsetx)) ? (Nxto-offsetx) : dx;
+        dx = (dx<0) ? 0 : dx;
+
+        dy = Nyfrom;
+        dy = (dy>(Nyto-offsety)) ? (Nyto-offsety) : dy;
+        dy = (dy<0) ? 0 : dy;
+
+        N = dx*dy;
+
+        Is = N/nthreads; Is = (Is<1) ? 1 : N;
+        I0 = (threadnum)*Is;
+        I1 = (threadnum<nthreads-1) ? (threadnum+1)*Is : N;
+
+        for(I=I0;I<I1;I++)
+        {
+            Ix = I%dx;
+            Iy = I/dx;
+
+            Ia = Ipto + Npto*((Ix+offsetx) + Nxto*(Iy+offsety));
+            Ib = Ipfrom + Npfrom*(Ix + Nxfrom*Iy);
+            
+            datato[Ia] = datafrom[Ib];
+        }
+
+        return;
+    }      
+
+    void amsimage_plane_copy(
+        uint8_t *datato,
+        int Ipto,
+        int Npto,
+        int Nxto,
+        int Nyto,
+        const uint8_t *datafrom,
+        int Ipfrom,
+        int Npfrom,
+        int Nxfrom,
+        int Nyfrom,
+        int offsetx,
+        int offsety
+    )
+    {
+        int dx,dy;
+        int64_t N;
+
+        if(datato==NULL) return;
+        if(datafrom==NULL) return;
+
+        dx = Nxfrom;
+        dx = (dx>(Nxto-offsetx)) ? (Nxto-offsetx) : dx;
+        dx = (dx<0) ? 0 : dx;
+
+        dy = Nyfrom;
+        dy = (dy>(Nyto-offsety)) ? (Nyto-offsety) : dy;
+        dy = (dy<0) ? 0 : dy;
+
+        N = dx*dy;
+
+        threaded_execute(
+            amsimage_plane_copy_tf,
+            N,
+            datato,
+            Ipto,Npto,Nxto,Nyto,
+            datafrom,
+            Ipfrom,Npfrom,Nxfrom,Nyfrom,
+            offsetx,offsety
+        );
+    }
 
+    void amsimage_planeregion_set_tf(
+        int threadnum,
+        int nthreads,
+        uint8_t *data,
+        int Np, int Nx, int Ny,
+        int Ip,
+        int x0, int y0,
+        int x1, int y1,
+        uint8_t val
+    )
+    {
+        int64_t I,I0,I1,Is,N,Ix,Iy;
+        int dx,dy;
+
+        dx = (x1-x0); dy = (y1-y0);
+        dx = (dx<0) ? 0 : dx;
+        dy = (dy<0) ? 0 : dy;
+        N = dx*dy;
+
+        Is = N/nthreads; Is = (Is<1) ? 1 : N;
+        I0 = (threadnum)*Is;
+        I1 = (threadnum<nthreads-1) ? (threadnum+1)*Is : N;
+
+        for(I=I0;I<I1;I++)
+        {
+            Ix = I%dx;
+            Iy = I/dx;
+
+            data[Ip + Np*(Ix+x0) + Np*Nx*(Iy+y0)] = val;
+
+        }
+
+        return;
+    }
+
+    void amsimage_planeregion_set(
+        uint8_t *data,
+        int Np, int Nx, int Ny,
+        int Ip,
+        int x0, int y0,
+        int x1, int y1,
+        uint8_t val
+    )
+    {
+        int dx,dy;
+        int64_t N;
+
+        if(data==NULL) return;
+
+        dx = (x1-x0); dy = (y1-y0);
+        dx = (dx<0) ? 0 : dx;
+        dy = (dy<0) ? 0 : dy;
+        N = dx*dy;
+
+        threaded_execute(
+            amsimage_planeregion_set_tf,
+            N,
+            data, Np,Nx,Ny, Ip, 
+            x0, y0, x1, y1, 
+            val
+        );
+
+        return;
+    }
 
 }; //end namespace imglib4
 }; //end namespace ams
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index e229bd4..9e8fbaf 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -7,7 +7,7 @@ int main(int argc, char* argv[])
     int ret = 0;
 
     //amscppimglib4_test1();
-    amscppimglib4_test2();
+    //amscppimglib4_test2();
 
     return ret;
 }
\ No newline at end of file