add --increment-seed argument

swift/StableDiffusionCLI/main.swift

@@ -68,6 +68,9 @@ struct StableDiffusionSample: ParsableCommand {
     @Flag(help: "Reduce memory usage")
     var reduceMemory: Bool = false
 
+    @Flag(help: "Increse random seed by 1 for each image")
+    var incrementSeed: Bool = false
+
     mutating func run() throws {
         guard FileManager.default.fileExists(atPath: resourcePath) else {
             throw RunError.resources("Resource path does not exist \(resourcePath)")
@@ -89,6 +92,15 @@ struct StableDiffusionSample: ParsableCommand {
         let sampleTimer = SampleTimer()
         sampleTimer.start()
 
+        let loops = incrementSeed ? imageCount : 1
+        let imageCountPerBatch = incrementSeed ? 1 : imageCount
+
+        for i in 0 ..< loops {
+            if (incrementSeed) {
+                log("Generating image \(i+1) of \(imageCount) with seed \(seed)\n")
+                log("\n")
+            }
+
             let images = try pipeline.generateImages(
                 prompt: prompt,
                 negativePrompt: negativePrompt,
@@ -107,6 +119,11 @@ struct StableDiffusionSample: ParsableCommand {
             }
 
             _ = try saveImages(images, logNames: true)
+
+            if (incrementSeed) {
+                seed += 1
+            }
+        }
     }
 
     func handleProgress(