diff --git a/codes/data/LQGT_dataset.py b/codes/data/LQGT_dataset.py
index 99fed582..b17b21a4 100644
--- a/codes/data/LQGT_dataset.py
+++ b/codes/data/LQGT_dataset.py
@@ -191,7 +191,7 @@ class LQGTDataset(data.Dataset):
         # LQ needs to go to a PIL image to perform the compression-artifact transformation.
         img_LQ = (img_LQ * 255).astype(np.uint8)
         img_LQ = Image.fromarray(img_LQ)
-        if self.opt['use_compression_artifacts']:
+        if self.opt['use_compression_artifacts'] and random.random() > .25:
             qf = random.randrange(10, 70)
             corruption_buffer = BytesIO()
             img_LQ.save(corruption_buffer, "JPEG", quality=qf, optimice=True)