Package outlines: separate a bright carton face from its background

A rectangular shadowless light gives this carton face a strong boundary in the real source capture. The useful decision is where the outline lies; the image says nothing about what is inside the box.

Locate the package from a defined contour rather than its printed graphics.

3D illustration of the inspection setup: Carton outlines under rectangular shadowless lightReal camera capture of the bright package face and surrounding contour.Real camera capture
3D illustration of the arrangement · Explore it in 3D
  • Proposed light housing (spec)200 × 116 × 42 mm
  • EvidenceReal application-lab captures
  • Camera (proposed)2448 × 2048 monochrome
  • Field (derived proposal)84.46 × 70.66 mm derived from printed 0.1x magnification

The challenge

A light-coloured package can merge into a bright fixture or background. Printed text and glossy wrapping can distract a detector that only needs the outside contour.

How it was solved

The source names white LS-RIH15075. The result crop retains the package outline while excluding the unrelated brand and label on the source part photograph.

The proposed camera and macro lens look through the frame. The individual light drawing gives a 147 × 72 mm inner rectangular opening; the 152 × 76 mm emitting area is a separate dimension.

Why it works

  1. 1

    A diffuse surrounding field makes the package face distinct from its surroundings.

  2. 2

    A clear outside edge supports a location trial; it does not prove packaging seal quality, contents, correct printing or a dimensional tolerance.

Lighting application-lab image sheet

Evidence you can inspect

Visible in the images

A rectangular package face is clearly separated from the surrounding background.

What the source reports

The sheet describes extracted high-contrast contours with white LS-RIH15075; it gives no positional error, tolerance or production detection rate.

How to use this evidence

An application-lab lighting demonstration, not a customer deployment or a qualified production inspection. Proposed camera, lens, fixture and scene spacing require a fresh trial. Source observations do not establish a defect-size limit, accuracy guarantee or production false-call rate.

From image contrast to a production decision

What to validate on your part

  1. 01

    Specify the outline

    Define whether the box edge, wrapping seam or printed border is the required datum.

  2. 02

    Vary packaging

    Include acceptable carton colours, glossy film, dents and background changes.

  3. 03

    Repeat location

    Measure detected edges across fixture reloads, rotations and the required working field.

From the demo to your test bench

Parts in this setup

Build this system

"Tested" identifies the part named in the source. "Our pick" is a proposed alternative or supporting part. Confirm colour, optics, controllers, power supplies, cables and mounting before ordering.

The set-up

Source cameraNot identified in the source sheet
Camera and lensProposed catalog components
Proposed field84.46 × 70.66 mm derived from printed 0.1x magnification
Lens-to-part in proposed scene152 mm; printed working-distance pair
Mounting (proposed)LS-BT-XZ-G-6-6045 · catalog test station with two lighting holders

Mount the optics with intent

The station is an optical test bench, with its two lighting holders included in the catalog listing. The 3D column and base follow the published height and footprint. Carriages, clamps and part supports are schematic: confirm camera screw pattern, lens support, light fasteners, permissible load and actual travel before ordering.

Complete the electrical system

Select a controller against the exact light voltage, drive mode and power, then confirm camera data/power/I/O cables and a suitable PC. These are not silently added to the proposed optical kit.

Build this system

Start from this setup, adapt it to your part.

The configurator opens with this study's camera, lens, light and station picked. Swap any part, check fit and price, then buy or ask for a quote.

Camera and available lens CAD are published models. Light envelopes and the station base/height use printed dimensions. Part shapes, brackets, holders, shielding and spacing are illustrative; they are not reconstructions of a source part or a complete mechanically validated assembly. Light paths explain the proposed arrangement and do not simulate optical performance. The proposed field is derived from the printed camera pixel dimensions and the stated lens magnification/working-distance pair, not measured from the source capture.