Image analyzer

Our platform offers advanced tools for photo verification, incorporating two cutting-edge technologies: Noise Analysis and Error Level Analysis. These tools are employed to validate the authenticity of images and to detect potential manipulations. To utilize these features, navigate to the applicant's page and access the respective tools within the Documents or Selfie section.

Noise Analysis: This tool essentially functions as a reverse denoising algorithm, targeting not the removal of noise but the exclusion of the image's background. It accomplishes this by employing a straightforward separable median filter to isolate the noise. Noise Analysis proves invaluable for identifying various image manipulations, such as airbrushing, deformations, warping, and perspective-corrected cloning. It delivers the most accurate results when applied to high-quality images, as smaller images might lack sufficient information for this tool to perform optimally.

• Noise Amplitude: Adjusts the intensity of the noise, making it brighter.

• Equalize Histogram: Applies histogram equalization to the noise, unveiling or concealing specific details. It's advisable to experiment with both histogram equalization and scaling for comprehensive noise analysis.

• Opacity: Regulates the transparency of the noise layer. Reducing opacity allows you to view more of the original image.

Error Level Analysis: This tool is designed to compare the original image with a recompressed version, facilitating the identification of manipulated areas in various ways. Manipulated regions may appear either darker or brighter than similar, unaltered sections of the image.

• Quality: Customize this parameter to match the original image's quality before any Photoshop alterations.

• Error Scale: Amplifies the distinctions between the original and recompressed images.

• Opacity: Controls the transparency of the differences layer, offering the flexibility to reveal more of the original image by lowering the opacity setting.