Level button, Histogram | Acer Film Scanner specs

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Level button

Clicking on the Level button, and the Level dialog box will appear:

The Level dialog box includes several useful tools that you can use to check the color level information of the image and adjust the image quality. Each component in the dialog box and how they work to affect the image is described below.

Color Channel box

Use this box to select the color channel to be adjusted. This allows you to adjust the histogram property of each color channel respectively.

Histogram

The Histogram displays the distributing status of dark and bright pixels in an image. The x-axis is divided into 256 equal portions, representing the brightness level of 0 to 255. The y-axis is used to represent the quantity of pixels in each brightness level. If we compare the following two images and their histograms:

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Image 43

Acer Film Scanner user manual Level button, Histogram

Contents

Film Scanner Page English Important Safety Instructions English FCC Information Table of Contents Working with Album MiraPhoto Quick Reference Map Memo Introduction Features Hardware Introduction Friendly and Smart Driver Eject button LED indicatorsPower button Holder insertion slot Scsi ID selector Power cord receptacleScsi in connector Ventilation holes 300mm 200mm Scsi OUT connector Software Introduction Install the Scsi interface card InstallationConnect the scanner to your computer Install scanner driver and other applications Install Scanner Driver SoftwareTest the scanner Place original on the holder Making Your First ScanIf you want to scan a filmstrip Insert the filmstrip holder into the holder insertion slot If you want to scan slides Scan To preview manually To use Scan buttonEdit Memo Using MiraPhoto Menu Bar Scan Size… Monitor Gamma Scanner Info… ContentsFilm Type Auto Preview Combo Boxes Image Thumbnail Area English Resolution box Film Selection Area Control Buttons Film Type button Tool ButtonsFlip button Mirror button Rotate buttonCrop button Invert button Color Enhancement Tools button Brightness control Brightness/Contrast buttonContrast control Color Balance button Adjustment AreaChannel Lightness Bar Color Adjustment button Entry Box Color Channel box Curve buttonTonal Map Input/Output Status Area Histogram Level button Addition, if we take a look at the two images below Shadow Midtone Highlight Threshold Output Level box Input Level box Filter button Color Wizard button Switch buttonApply all button Info button Preview Area Memo Introduction Photo Express Tool Bar Workspace Getting Started English Getting Images To create a new Album Printing album thumbnails To add new images to an album Working on Images To re-align a photo To re-size your photo To trim your photoUser defined option Printing Images To print an image To save a photo Create Calendars To create calendars Morphing Photos To morph an image Working in Project Mode To move one object over another To replace images in a template Apply To add special edge effects to a photo objectTo add frame to a photo object Adding Decoration Printing Templates To print a template as name cards Sharing Templates To e-mail a templateTo fax a template To output a template as a Web Troubleshooting Troubleshooting and FAQ FAQ Re-packing Directions Service Information Appendix Product Specification