rea-agents
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    Function comparePngScreenshots

    • Compare two validated screenshots using bounded, deterministic RGBA metrics.

      Parameters

      • input: {
            after: {
                bytes: number;
                data_base64: string;
                media_type: "image/png";
                sha256: string;
                uri: string;
            };
            before: {
                bytes: number;
                data_base64: string;
                media_type: "image/png";
                sha256: string;
                uri: string;
            };
            channel_threshold: number;
            maximum_pixels: number;
        }

      Returns {
          after: { height: number; width: number };
          before: { height: number; width: number };
          changed_pixels: number | null;
          changed_ratio: number | null;
          channel_threshold: number;
          compared_pixels: number;
          limitations: string[];
          maximum_channel_delta: number | null;
          mean_absolute_channel_delta: number | null;
          schema_version: 1;
          status: "identical" | "different" | "dimension_mismatch";
      }