diff --git a/include/heman.h b/include/heman.h
index 8b100e4..72a21d1 100644
--- a/include/heman.h
+++ b/include/heman.h
@@ -92,7 +92,7 @@ heman_image* heman_generate_archipelago_heightmap(
 // RGB image in addition to the heightmap.
 void heman_generate_archipelago_political(int width, int height,
     heman_points* points, const heman_color* colors, heman_color ocean,
-    float noiseamt, int seed, heman_image** elevation, heman_image** political);
+    int seed, heman_image** elevation, heman_image** political);
 
 // High-level function that sums up a number of noise octaves, also known as
 // Fractional Brownian Motion.  Taken alone, Perlin / Simplex noise are not
diff --git a/src/generate.c b/src/generate.c
index a38c976..5ae9bc5 100644
--- a/src/generate.c
+++ b/src/generate.c
@@ -283,7 +283,7 @@ heman_image* heman_generate_archipelago_heightmap(
 
 heman_image* heman_generate_archipelago_political_1(int width, int height,
     heman_points* points, const heman_color* colors, heman_color ocean,
-    float noiseamt, int seed)
+    int seed)
 {
     heman_image* contour = heman_image_create(width, height, 3);
     heman_image_clear(contour, 0);
@@ -340,10 +340,10 @@ heman_image* heman_generate_archipelago_political_2(int width, int height,
 
 void heman_generate_archipelago_political(int width, int height,
     heman_points* points, const heman_color* colors, heman_color ocean,
-    float noiseamt, int seed, heman_image** elevation, heman_image** political)
+    int seed, heman_image** elevation, heman_image** political)
 {
     *political = heman_generate_archipelago_political_1(
-        width, height, points, colors, ocean, noiseamt, seed);
+        width, height, points, colors, ocean, seed);
     *elevation = heman_generate_archipelago_political_2(
         width, height, ocean, seed, *political);
 }
diff --git a/src/ops.c b/src/ops.c
index 63924c3..d9aeba5 100644
--- a/src/ops.c
+++ b/src/ops.c
@@ -347,6 +347,12 @@ heman_image* heman_ops_merge_political(
     HEMAN_FLOAT oceang = (HEMAN_FLOAT)((ocean >> 8) & 0xff) * inv;
     HEMAN_FLOAT oceanb = (HEMAN_FLOAT)(ocean & 0xff) * inv;
     int size = hmap->height * hmap->width;
+    float minh = 1000;
+    float maxh = -1000;
+    for (int i = 0; i < size; ++i) {
+        minh = MIN(minh, pheight[i]);
+        maxh = MIN(maxh, pheight[i]);
+    }
     for (int i = 0; i < size; ++i) {
         HEMAN_FLOAT h = *pheight++;
         if (h < 0) {
@@ -359,7 +365,7 @@ heman_image* heman_ops_merge_political(
             *pmerged++ = *pcolour++;
             *pmerged++ = *pcolour++;
         }
-        *pmerged++ = h;
+        *pmerged++ = (h - minh) / (maxh - minh);
     }
     return result;
 }
@@ -384,7 +390,7 @@ heman_image* heman_ops_emboss(heman_image* img, int mode)
     float land_amplitude = 0.0005;
     float land_frequency = 256.0;
     float ocean_amplitude = 0.5;
-    float ocean_frequency = 2.0;
+    float ocean_frequency = 1.0;
 
 #pragma omp parallel for
     for (int y = 0; y < height; y++) {