diff --git a/src/openrct2/CmdlineSprite.cpp b/src/openrct2/CmdlineSprite.cpp
index 5255169eb6..66509d6d84 100644
--- a/src/openrct2/CmdlineSprite.cpp
+++ b/src/openrct2/CmdlineSprite.cpp
@@ -233,7 +233,7 @@ static bool sprite_file_export(sint32 spriteIndex, const char *outPath)
         gfx_bmp_sprite_to_buffer((uint8*)spriteFilePalette, spriteHeader->offset, pixels, spriteHeader, &dpi, spriteHeader->height, spriteHeader->width, IMAGE_TYPE_DEFAULT);
     }
 
-    if (image_io_png_write(&dpi, (rct_palette*)spriteFilePalette, outPath)) {
+    if (Imaging::PngWrite(&dpi, (rct_palette*)spriteFilePalette, outPath)) {
         return true;
     } else {
         fprintf(stderr, "Error writing PNG");
@@ -303,7 +303,7 @@ static bool sprite_file_import(const char *path, sint16 x_offset, sint16 y_offse
     uint8 *pixels;
     uint32 width, height;
     sint32 bitDepth;
-    if (!image_io_png_read(&pixels, &width, &height, !keep_palette, path, &bitDepth))
+    if (!Imaging::PngRead(&pixels, &width, &height, !keep_palette, path, &bitDepth))
     {
         fprintf(stderr, "Error reading PNG\n");
         return false;
diff --git a/src/openrct2/Imaging.cpp b/src/openrct2/Imaging.cpp
index 3c34841438..dde73791f3 100644
--- a/src/openrct2/Imaging.cpp
+++ b/src/openrct2/Imaging.cpp
@@ -300,19 +300,3 @@ namespace Imaging
         log_error(b);
     }
 }
-
-bool image_io_png_read(uint8 * * pixels, uint32 * width, uint32 * height, bool expand, const utf8 * path, sint32 * bitDepth)
-{
-    return Imaging::PngRead(pixels, width, height, expand, path, bitDepth);
-}
-
-bool image_io_png_write(const rct_drawpixelinfo * dpi, const rct_palette * palette, const utf8 * path)
-{
-    return Imaging::PngWrite(dpi, palette, path);
-}
-
-bool image_io_png_write_32bpp(sint32 width, sint32 height, const void * pixels, const utf8 * path)
-{
-    return Imaging::PngWrite32bpp(width, height, pixels, path);
-}
-
diff --git a/src/openrct2/Imaging.h b/src/openrct2/Imaging.h
index c6c3df9f5f..b7140dae2d 100644
--- a/src/openrct2/Imaging.h
+++ b/src/openrct2/Imaging.h
@@ -27,7 +27,3 @@ namespace Imaging
     bool PngWrite(const rct_drawpixelinfo * dpi, const rct_palette * palette, const utf8 * path);
     bool PngWrite32bpp(sint32 width, sint32 height, const void * pixels, const utf8 * path);
 }
-
-bool image_io_png_read(uint8 * * pixels, uint32 * width, uint32 * height, bool expand, const utf8 * path, sint32 * bitDepth);
-bool image_io_png_write(const rct_drawpixelinfo * dpi, const rct_palette * palette, const utf8 * path);
-bool image_io_png_write_32bpp(sint32 width, sint32 height, const void * pixels, const utf8 * path);
diff --git a/src/openrct2/interface/Screenshot.cpp b/src/openrct2/interface/Screenshot.cpp
index fc47453757..b619e2103f 100644
--- a/src/openrct2/interface/Screenshot.cpp
+++ b/src/openrct2/interface/Screenshot.cpp
@@ -153,7 +153,7 @@ sint32 screenshot_dump_png(rct_drawpixelinfo *dpi)
     rct_palette renderedPalette;
     screenshot_get_rendered_palette(&renderedPalette);
 
-    if (image_io_png_write(dpi, &renderedPalette, path)) {
+    if (Imaging::PngWrite(dpi, &renderedPalette, path)) {
         return index;
     } else {
         return -1;
@@ -169,7 +169,7 @@ sint32 screenshot_dump_png_32bpp(sint32 width, sint32 height, const void *pixels
         return -1;
     }
 
-    if (image_io_png_write_32bpp(width, height, pixels, path)) {
+    if (Imaging::PngWrite32bpp(width, height, pixels, path)) {
         return index;
     } else {
         return -1;
@@ -259,7 +259,7 @@ void screenshot_giant()
     rct_palette renderedPalette;
     screenshot_get_rendered_palette(&renderedPalette);
 
-    image_io_png_write(&dpi, &renderedPalette, path);
+    Imaging::PngWrite(&dpi, &renderedPalette, path);
 
     free(dpi.bits);
 
@@ -576,7 +576,7 @@ sint32 cmdline_for_screenshot(const char * * argv, sint32 argc, ScreenshotOption
         rct_palette renderedPalette;
         screenshot_get_rendered_palette(&renderedPalette);
 
-        image_io_png_write(&dpi, &renderedPalette, outputPath);
+        Imaging::PngWrite(&dpi, &renderedPalette, outputPath);
 
         free(dpi.bits);
         drawing_engine_dispose();
diff --git a/src/openrct2/world/MapGen.cpp b/src/openrct2/world/MapGen.cpp
index 77e28c54dd..7c045da670 100644
--- a/src/openrct2/world/MapGen.cpp
+++ b/src/openrct2/world/MapGen.cpp
@@ -656,7 +656,7 @@ bool mapgen_load_heightmap(const utf8 * path)
     if (String::Equals(extension, ".png", false))
     {
         sint32 bitDepth;
-        if (!image_io_png_read(&pixels, &width, &height, true, path, &bitDepth))
+        if (!Imaging::PngRead(&pixels, &width, &height, true, path, &bitDepth))
         {
             log_warning("Error reading PNG");
             context_show_error(STR_HEIGHT_MAP_ERROR, STR_ERROR_READING_PNG);