Knowledge base

Side-by-side image comparison — Step-by-step instructions

The challenge

We have a set of 3 icons in 3 pairs. We need to find out which icon people prefer and determine the top icon out of the set. We ask performers to look at the icons and choose the one they prefer and then we aggregate these results to obtain the top icon. Here’s what this might look like:

Video: 5 basic steps to run a project

Create
a project

Create
a task pool

Upload a file
with data

Launch
the pool

Get the
results

Download PDF guide

Open in GitHub

Open in Colab

Create a project

Interface code


{
  "view": {
    "type": "view.list",
    "items": [
      {
        "type": "layout.side-by-side",
        "items": [
          {
            "type": "view.image",
            "url": {
              "type": "data.input",
              "path": "initial_image"
            }
          },
          {
            "type": "view.image",
            "url": {
              "type": "data.input",
              "path": "image_new"
            }
          }
        ],
        "controls": {
          "type": "view.list",
          "items": [
            {
              "type": "field.radio-group",
              "label": "Which icon do you like more?",
              "options": [
                {
                  "label": "Left",
                  "value": "LEFT"
                },
                {
                  "label": "Right",
                  "value": "RIGHT"
                },
                {
                  "label": "Loading error",
                  "value": "404"
                }
              ],
              "data": {
                "type": "data.output",
                "path": "result"
              },
              "validation": {
                "type": "condition.required"
              }
            }
          ]
        }
      }
    ]
  },
  "plugins": [
    {
      "1": {
        "type": "action.set",
        "data": {
          "type": "data.output",
          "path": "result"
        },
        "payload": "LEFT"
      },
      "2": {
        "type": "action.set",
        "data": {
          "type": "data.output",
          "path": "result"
        },
        "payload": "RIGHT"
      },
      "3": {
        "type": "action.set",
        "data": {
          "type": "data.output",
          "path": "result"
        },
        "payload": "404"
      },
      "type": "plugin.hotkeys"
    }
  ]
}

Create a task pool

Upload a file with data

Dataset

Prepare a TSV file with tasks as shown in our example.
License: CC BY 4.0

Launch the pool

Get the results

Aggregation

Aggregate the results.