make jpeg optimized and progressive (#820)

* GUI make jpeg optimized and progressive

* CLI make jpeg optimized and progressive

shark/examples/shark_inference/stable_diffusion/main.py

@@ -285,7 +285,11 @@ if __name__ == "__main__":
             img_name = f"{prompt_slice}_{args.seed}_{run}_{dt.now().strftime('%y%m%d_%H%M%S')}"
             if args.output_img_format == "jpg":
                 pil_images[i].save(
-                    output_path / f"{img_name}.jpg", quality=95, subsampling=0
+                    output_path / f"{img_name}.jpg",
+                    quality=95,
+                    subsampling=0,
+                    optimize=True,
+                    progressive=True,
                 )
             else:
                 pil_images[i].save(output_path / f"{img_name}.png", "PNG")

web/models/stable_diffusion/main.py

@@ -84,7 +84,13 @@ def save_output_img(output_img):
     )
     if args.output_img_format == "jpg":
         out_img_path = Path(generated_imgs_path, f"{out_img_name}.jpg")
-        output_img.save(out_img_path, quality=95, subsampling=0)
+        output_img.save(
+            out_img_path,
+            quality=95,
+            subsampling=0,
+            optimize=True,
+            progressive=True,
+        )
     else:
         out_img_path = Path(generated_imgs_path, f"{out_img_name}.png")
         output_img.save(out_img_path, "PNG")