Update app.py

app.py

@@ -105,11 +105,28 @@ def generate_image_from_text(encoded_image,pos_prompt=None):
     neg_prompt = '''Detailed, complex textures, intricate patterns, realistic lighting, high contrast, reflections, fuzzy surface, realistic proportions, photographic quality, vibrant colors, detailed background, shadows, disfigured, deformed, ugly, multiple, duplicate.'''
     encoded_str = encode_image_to_base64(encoded_image)
     new_prompt = gen_pos_prompt(pos_prompt)
-    parameters = {
+    if pos_prompt:
+        parameters = {
+              'taskType': 'IMAGE_VARIATION',
+              'imageVariationParams': {
+                  'images': [encoded_str],
+                  'text': gen_pos_prompt(pos_prompt),
+                  'negativeText': neg_prompt,
+                  'similarityStrength': 0.7
+              },
+              'imageGenerationConfig': {
+                  "cfgScale": 8,
+                  "seed": 0,
+                  "width": 512,
+                  "height": 512,
+                  "numberOfImages": 1
+              }
+          }
+    else:
+        parameters = {
           'taskType': 'IMAGE_VARIATION',
           'imageVariationParams': {
               'images': [encoded_str],
-              'text': gen_pos_prompt(pos_prompt) if pos_prompt else None,
               'negativeText': neg_prompt,
               'similarityStrength': 0.7
           },