NaraImage - Selections

There are two ways to select an area in NaraImage.

1. Press 'S' to enter selection mode, click-and-drag to make a select region, then press 'ESC' to end selection mode.
2. Drag while pressing shift key

Right-click in a selection to see what we can do with a selection.

If you want to change the size of the selection, drag a selection border.

If you want to move a selection, click-and-drag the center of the selection.

(you can see that mouse cursor changes when you move your cursor to the center of the selection area).

You can modify a selection manually by selecting 'Edit Selection'.

 There are 4 edit boxes that represent x and y coordinates of left, top, right, and bottom sides of a selection.

If you want to export a selection to other formats, select 'Export' in the menu.
(Or, press Ctrl+E).
Learn 'Export'.

NaraImage - Export

You can export an image as PNG, raw YUV, or raw RGB file.

Press Ctrl+E to export. 

You can export a whole image or a part of the image. Use selection to export a part of the image (Learn 'Selection').

NaraImage - Comparing images

NaraImage supports up-to-8 panes.
If you select multiple images using ctrl-click (or shift-click), they will show up in different panes.

Press 'd' to see the differences.

NaraImage supports several diff modes - Pixel, Block, Heatmap, and Overlap.
  - Pixel : Pixel-by-pixel comparison. Differences are represented as red dots.
  - Block : Block-by-block comparison. You can change the block size on the toolbar.
  - Heatmap : Pixel-by-pixel heatmap comparison (see above image).
  - Overlap : Two images are shown overlapped. If two images have different color space, this is the only diff mode you can use.

Press 'v' to peek a pixel value.

You can see the coordinates, pixel values, and the differences in the tooltips. Tooltip will be disappear as soon as you release 'v'.

NaraImage - Investigating images

You can zoom in and out by turning your mouse wheel, or by pressing + or -.
Each click, up or down, increases or decreases the zoom factor by 10%.

If you double click the image, it will be 2 times bigger.

If you double click while holding control key, it will zoom 5000%, which is called 'Extreme close-up'.
You can see pixel values directly on the images when you zoom more than 5000%.

There are of course, shortcuts for zooming.
Press '1' to zoom 50%
Press '2' to zoom 100%
Press '3' to zoom 150%
Press '4' to zoom 200%
Press 'z' to enter yourself.

NaraImage - Yet Another YUV file viewer

NaraImage v1.2.4

NaraImage is an image viewer which supports YUV/RGB raw files and compressed image formats, such as Bitmap, JPEG, PNG, etc.



Features

• supports YUV / RGB raw files
• supports compressed image formats, such as .bmp, .jpg, .png, etc
• supports pure raw data files (16-bit integer, and float).
• supports multiple pane (up to 8) to compare images.
• compares images visually and with PSNR.
• you can export an image (whole or a part of the image) as PNG or YUV file.
• provides 6 different color themes.

Operating system
  Unfortunately, NaraImage only supports Windows.

Copyright
  NaraImage is free-software designed by naranicca.

Download