FAQ

💬 Can I use any image or video format?

Only PNG and JPG are currently supported for images. Video support is limited to formats readable by FFmpeg: .mp4, .avi, .mkv, etc.

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📂 Where are my results saved?

• Excel test results are saved in the same folder as the analyzed image or video.

• Filtered images are saved in a subfolder named:

  [original_image_name]_filters
  

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🕵️‍♀️ Does SubSpectra always detect hidden messages?

No. SubSpectra performs statistical and visual analysis, but:

• A message may be too subtle to detect
• Some methods (like compression-based hiding) may bypass LSB detection

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🔐 Can I hide more than 40 characters in a video?

Not by default. The video_length is hardcoded but can be modified in the source code.

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📊 Why are some Chi-square or RS results "unnatural" even for clean files?

• Some images may have naturally unbalanced bit layers
• Transparent PNGs or camera artifacts can skew results
• Always analyze the whole report contextually

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⚙️ Can I adjust which layers are tested?

Yes. You can modify the test_layers array in the source to analyze different bit positions (0–7).

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🧪 Can I add my own filter or test?

You can:

• Add new filters in btn_5_start_Click
• Add new statistical methods in the test functions for Panels 3 or 4

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🛠 Support for other steganography types?

Possibly in the future. Right now, SubSpectra focuses on LSB manipulation, which is most common and widely understood.

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