New 16-bit test images of fixed size

scripts/gen_16bit_testimage.ijm

-// macro to generate a 1D image containing pixel values ranging
-// from zero to the maximum possible value of the numbers given
-// in the bit_depth array - for every bit depth specified there
-// two pixels are added, one being (max - 1) and the second
-// being the max value itself
-
-bit_depths = newArray(0, 8, 9, 10, 11, 12, 14, 16);
-
-
-range = newArray(lengthOf(bit_depths) * 2);
-for (i = 0; i < lengthOf(bit_depths); i++) {
-	range[i*2] = pow(2, bit_depths[i]) - 2;
-	range[i*2+1] = pow(2, bit_depths[i]) - 1;
-}
-range[0] = 0;
-
-Array.print(range);
-
-title = "" + bit_depths[lengthOf(bit_depths)-1] + " bit test image";
-
-newImage(title, "16 bit", lengthOf(range) - 1, 1, 1);
-for (i = 1; i < lengthOf(range); i++) {
-	setPixel(i-1, 0, range[i]);	
-}
-run("Set... ", "zoom=3200");
-run("glasbey_on_dark");

scripts/gen_16bit_testimages_5px.ijm

+// macro to generate 2D images containing pixels with the four highest 
+// values of the given bit depth (defined in the bit_depth array),
+// followed by a zero value pixel (eventually rescaled to 160x32)
+
+#@ File(label="Output directory",style="directory") gen_images_output_dir
+
+bit_depths = newArray(8, 9, 10, 11, 12, 13, 14, 15, 16);
+
+for (i = 0; i < lengthOf(bit_depths); i++) {
+    title = "" + bit_depths[i] + " bit 5px test image";
+    // print(title);
+    newImage(title, "16 bit", 5, 1, 1);
+    for (v = 0; v < 4; v++) {
+        val = pow(2, bit_depths[i]) - (1 + v);
+        setPixel(v, 0, val);
+        // print("pos / value: " + v + " / " + val);
+    }
+    setPixel(4, 0, 0);
+    run("Scale...", "x=32 y=32 width=160 height=32 interpolation=None create");
+    selectWindow(title);
+    close();
+    rename(title);
+    saveAs("Tiff", gen_images_output_dir + "/" + title + ".tif");
+    close();
+}