first commit

sc55art.py

@@ -0,0 +1,78 @@
+import sys
+import os
+from PIL import Image
+
+def process_image_to_canvas(image_path, threshold=128):
+    try:
+        img = Image.open(image_path).convert('L')
+        img = img.resize((16, 16))
+        
+        img = img.transpose(Image.FLIP_TOP_BOTTOM)
+        img = img.transpose(Image.ROTATE_270) 
+        
+        pixels = img.load()
+        
+        my_canvas = [[] for _ in range(4)]
+        
+        row_ranges = [(0, 5), (5, 10), (10, 15), (15, 16)]
+        
+        for row_idx, (start_y, end_y) in enumerate(row_ranges):
+            for x in range(16):
+                bits = ""
+                for y in range(start_y, end_y):
+                    bits += "1" if pixels[x, y] < threshold else "0"
+                
+                while len(bits) < 5:
+                    bits += "0"
+                    
+                my_canvas[row_idx].append(bits)
+        
+        return my_canvas
+    except Exception as e:
+        print(f"Error occurred while processing an image: {e}")
+        sys.exit(1)
+
+def create_sysex_file(filename, canvas):
+    model_id = 0x45
+    address = [0x10, 0x01, 0x00]
+    
+    data = []
+    for block_row in canvas:
+        for column_str in block_row:
+            val = int(column_str, 2) 
+            data.append(val)
+
+    if len(data) < 64:
+        data += [0] * (64 - len(data))
+
+    def calc_checksum(addr, payload):
+        s = sum(addr) + sum(payload)
+        return (128 - (s % 128)) % 128
+
+    checksum = calc_checksum(address, data)
+    full_packet = bytes([0xF0, 0x41, 0x10, model_id, 0x12] + address + data + [checksum] + [0xF7])
+
+    with open(filename, "wb") as f:
+        f.write(full_packet)
+    print(f"Output file: {filename}")
+    print("HEX:", " ".join(f"{b:02X}" for b in full_packet))
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: python sc55art.py <image path>")
+        return
+
+    input_path = sys.argv[1]
+    
+    if not os.path.exists(input_path):
+        print(f"File {input_path} not found.")
+        return
+
+    base_name = os.path.splitext(input_path)[0]
+    output_filename = f"{base_name}.syx"
+
+    canvas = process_image_to_canvas(input_path)
+    create_sysex_file(output_filename, canvas)
+
+if __name__ == "__main__":
+    main()