digital zoom

Digital zoom and pan

Digital zoom enlarges the media already decoded by your browser. It is available in the focused Peek Viewer, Keep recorded playback, and event detail images. It does not move the camera, request a different stream, or increase the source resolution.

Compact Dashboard tiles and the camera filmstrip do not capture inspection gestures. Open a camera in Viewer before using digital zoom.

Inspect a frame

The Digital controls sit at the top-left above the image without covering the picture. In Peek, they share one row and height with Live/History, quality, and camera information. The row scrolls horizontally when needed rather than wrapping. They show the current magnification. The minimum is 1.0x, which fits the complete image, and the maximum is 8.0x. The image keeps its original aspect ratio. Panning is bounded to the fitted image area, so a drag cannot move the image out of view.

Input	Result
Zoom-in icon	Double the magnification, up to 8.0x.
Zoom-out icon	Halve the magnification, down to 1.0x.
Reset icon	Return to the complete, centered frame.
Two-finger pinch inside the image	Zoom around the midpoint between the fingers; moving that midpoint also pans.
Mouse, pen, or one-finger drag	Pan while magnification is above 1.0x.
Alt + wheel or trackpad scroll	Zoom around the pointer. Use Option on macOS keyboards.
Double-click or double-tap	Switch between 1.0x and 2.0x around the pointer or tap.
+ or =	Zoom in when the inspection surface has focus.
-	Zoom out when the inspection surface has focus.
0	Reset when the inspection surface has focus.
Arrow keys	Pan while zoomed and focused.
Escape	Reset digital zoom before the normal Viewer or event-detail exit action.

Tab reaches the named zoom buttons. Activating a zoom button focuses the inspection surface, where the keyboard commands work. Peek's desktop control groups are 32 pixels high. Touch input uses at least 44-pixel button targets. All buttons have visible focus indicators and disabled states at the limits. The zoom value is also available to assistive technology.

Ordinary wheel scrolling does not change magnification. Control/Command zoom shortcuts still belong to the browser. Touch gestures are captured only inside the focused image; scrolling and browser gestures remain available elsewhere on the page. Zoom and reset do not require animated transitions.

Keep playback controls

Keep's play/pause, skip, position, volume, mute, speed, and fullscreen controls remain outside the transformed video. Timeline scrubbing still selects recording time, not an image crop. Arrow keys pan when the zoomed image has focus; Keep's normal frame-stepping shortcuts remain available at full-frame view or outside the inspection surface.

On a portrait phone, the Digital strip remains above the image while Playback options opens volume, speed and quality in a separate sheet. Opening that sheet does not replace the recording or move its playhead. Its quality choice can request different available media; the Digital strip only enlarges pixels already decoded. Close the sheet to inspect the horizontal recording history.

The fullscreen button expands the whole recorded player, including its controls. Zoom bounds update when entering or leaving fullscreen. Browser-native Escape handling can leave fullscreen before the page receives the key. A disabled fullscreen button indicates that the browser does not offer the Fullscreen API in that context; digital zoom remains available without fullscreen.

Reset and evidence

Changing the camera, recording, or canonical event image resets digital zoom. Play/pause and ordinary progress within the same selected media preserve the inspection position. Resizing the window, rotating the device, or changing decoded dimensions recomputes the bounds. Reset always returns to the complete frame at the current size.

Event bounding boxes use the canonical image's coordinate space and move with that image. Player controls, camera information, and diagnostics do not scale. Live camera information reports digital magnification separately from decoded resolution.

The inspection crop exists only in the current browser view. It is not saved into configuration, recording metadata, bookmarks, copied moment links, or exported evidence. Exports still contain the original recorded frame. See Recording and evidence.

Digital zoom is not PTZ

Digital zoom is labelled Digital and works for any media you can already view, including recordings and offline-camera event images. It does not require PTZ permission or a PTZ-capable camera. Physical pan, tilt, and optical zoom remain separate camera commands with their existing capability and permission checks.

See Camera controls for physical PTZ, detector configuration and the current limits of browser Talk.

Magnifying a low-resolution stream does not reveal detail that the camera did not send. Choose a higher available stream quality separately when you need more decoded pixels.