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Downloaders & Public Media
Open tool HTML Video Poster Extractor
Prepare a browser-safe public-media workflow for html video poster extractor with visible permission and privacy boundaries.
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Extraction and reporting tools for usable data
Pull structured details from supplied material and prepare readable summaries or reports.
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Image Tools
Open tool Image Alpha Centroid Report
Report the opacity-weighted center in pixel and normalized canvas coordinates.
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Image Tools
Open tool Image Alpha Distribution Report
Report decoded alpha extrema, quartiles, and exact transparency-state counts.
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Image Tools
Open tool Image Alpha Transition Density Report
Measure horizontal and vertical transitions among three alpha classes.
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Image Tools
Open tool Image Bilateral Symmetry Report
Report mean mirrored RGBA differences across horizontal and vertical canvas axes.
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Image Tools
Open tool Image Border Color Variance Report
Report per-channel population variance over the visible one-pixel border.
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Image Tools
Open tool Image Border Continuity Report
Report opposite-border decoded RGB mismatch for bounded tiling review.
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Image Tools
Open tool Image Center Edge Balance Report
Compare visible decoded luminance in a fixed central rectangle and surrounding edge region.
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Image Tools
Open tool Image Channel Clipping Report
Report per-channel decoded RGB zero and full-scale endpoint coverage.
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Image Tools
Open tool Image Channel Statistics Report
Report decoded RGBA minimums, maximums, means, dimensions, and transparent-pixel count.
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Image Tools
Open tool Image Chroma Distribution Report
Report visible decoded RGB max-minus-min channel spread and quartiles.
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Image Tools
Open tool Image Highlight and Shadow Clipping Report
Report visible luminance endpoint counts and percentages without changing the image.
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Image Tools
Open tool Image Edge Density Report
Report visible Sobel-gradient coverage at a fixed documented threshold.
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Image Tools
Open tool Image Entropy Report
Calculate base-two Shannon entropy over the visible luminance histogram.
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Image Tools
Open tool Image Grayscale Neutrality Report
Report near-neutral visible coverage under an eight-byte RGB spread tolerance.
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Image Tools
Open tool Image Hue Circular Concentration Report
Report weighted circular mean hue and resultant concentration.
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Image Tools
Open tool Image Lightness Distribution Report
Report decoded HSL lightness mean, quartiles, and extrema.
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Image Tools
Open tool Image Local Contrast Report
Report RMS luminance deviation from a clamped three-by-three local mean.
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Image Tools
Open tool Image Luminance Axis Profile Report
Export visible decoded-luminance counts and means for every row and column.
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Image Tools
Open tool Image Luminance Centroid Report
Report alpha-weighted decoded-luminance center in pixel and normalized coordinates.
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Image Tools
Open tool Image Luminance Extrema Location Report
Locate first row-major minimum and maximum visible luminance samples.
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Image Tools
Open tool Image Luminance Histogram Report
Export a complete 256-bin visible decoded-luminance distribution as JSON.
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Image Tools
Open tool Image Luminance Median Deviation Report
Report visible luminance median and robust median absolute deviation.
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Image Tools
Open tool Image Luminance Moments Report
Report visible luminance mean, standard deviation, skewness, and excess kurtosis.