Photolisa · Image tools directory
Image Inspection and Measurement
Inspect pixels, colors, capture fields and dimensions. Separate measured file properties from estimates that depend on calibration or interpretation.
24 catalog entries · 24 destinations
Available tools in this category
Check Transparency
Transparency inspection identifies fully transparent and partially transparent pixels.
AvailableColor Palette Extractor
Palette extraction summarizes prominent colors present in an image.
AvailableColor Picker
Color picking reads the numeric color of a selected pixel or region.
Existing toolTools in this category
Existing tools and tools in development are labeled separately24 tools shown
Check Transparency
Transparency inspection identifies fully transparent and partially transparent pixels.
AvailableColor Palette Extractor
Palette extraction summarizes prominent colors present in an image.
AvailableColor Picker
Color picking reads the numeric color of a selected pixel or region.
Existing toolCount Objects
Object counting identifies repeated visible items in a picture.
AvailableCounter
A visual counter keeps track of marked items or repeated observations.
AvailableEXIF Viewer
EXIF inspection reads camera and capture fields stored inside an image.
Existing toolFind Coordinates of Image
Image coordinate inspection locates a point relative to the image's pixel grid.
AvailableHistogram Viewer
A histogram shows how pixel values are distributed across tonal or color ranges.
AvailableImage Aspect Ratio Finder
Aspect ratio measurement compares image width with image height.
AvailableImage Hash Generator
Image hashing computes an identifier from file data or visual content.
AvailableImage Megapixel Checker
Megapixel checking expresses the total pixel count in millions.
AvailableImage Size Finder
Image size inspection reports pixel dimensions and potentially stored file size.
AvailableInk Calculator
Ink estimation relates image coverage to a proposed printing workflow.
AvailableMeasure Image
Image measurement estimates distances or angles within a pixel coordinate system.
AvailablePhoto Date Checker
Photo date inspection reads available capture and modification timestamps.
AvailablePhoto Location Viewer
Photo location inspection reads stored geographic metadata where available.
Existing toolPixel Counter
Pixel counting measures an image's area or a selected pixel region.
AvailablePPI Checker
PPI checking relates pixel dimensions to the intended physical print size.
AvailableShutter Count
Shutter count inspection looks for a camera's actuation record in supported metadata.
AvailableJPEG Quality Analyzer
JPEG quality analysis estimates compression characteristics from encoded image data.
AvailableUnique Colors Counter
Unique color counting measures distinct stored pixel color values.
AvailableImage Similarity Checker
Similarity checking compares visual characteristics between two images.
AvailableProgressive JPEG Checker
Progressive JPEG checking inspects how a JPEG is encoded for successive display passes.
AvailableImage Gradient
Extract a smooth color gradient that summarizes the colors across your image.
AvailablePlan a image inspection and measurement workflow
Metadata can be absent or edited. Physical distances require calibration, and estimated properties should not be presented as exact measurements.
Decisions before you begin
- File or selected region
- Measurement units
- Reference scale or metadata field
Prepare the task
- Identify the property you need to inspect and keep the source unchanged.
- Set any required scale, unit or comparison reference.
- Record the result together with its assumptions and any missing data.