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Jhead for MAC – Exif Jpeg camera setting parser and thumbnail remover. This app was released by MacUpdate, LLC Inc. and now updated into the latest version. Download this Graphics & Design app for free now on Apps4Mac.com
Jhead for MAC Latest Version
Jhead for Mac: Free Download + Review [Latest Version]. Before you download the .dmg file, here we go some fact about Jhead that maybe you want to need to know.
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App Name | Jhead App |
File Size | Unknown |
Developer | MacUpdate, LLC |
Update | 2009-11-08 |
Version | 2.88 |
Requirement | |
License | FreeWare |
About Jhead App for MAC
Things jhead can extract from an Exif jpeg file:
- Integral low-res Exif thumbnail
- Shutter speed
- Camera F-stop number
- Flash used (yes/no)
- Distance camera was focused at
- Focal length and calculate 35 mm equivalent focal length
- Image resolution
- Time and date picture was taken
- Camera make and model
Things jhead can modify in an exif jpeg file:
- Up-right images according to rotation tag using jpegtran
- Set or relative adjust internal exif timestamps
- Re-name or date stamp fils according to exif timestamp
- Transfer exif headers between images
- Edit jpeg comments
- Delete exif or comment sections from jpeg images
The files coming out of a pretty much all Digital cameras are in the Exif flavour of Jpeg files. Exif files are for the most part Jpeg files, but start with a different header block, and contain additional data sections with camera settings, as well as a preview thumbnail picture as part of the Exif header. Most editing / viewing software just skips past the Exif header and ignores it outright, so you normally don’t notice its even there.
Because I am interested in photography, I am always curious just exactly what settings my fully automatic digital camera actually did end up using. There’s a few programs out there that can parse some of these headers, but I couldn’d find one that I could compile to an executable, and none that actually figured out what the camera settings were from the various confusing ways in which the fields can be expressed. Parsing the data of interest out of an Exif header is not straightforward. There is a large number of ways that simple data such as shutter speed or aperture setting can be expressed in inside of an Exif header. It can be an integer of various forms, or a fraction or floating point, which must subsequently be raised to a power to get the true value. Then it can be stored big-endian or little endian, and there are different fields for expressing the same values! It sounds like complete eveolutionary anarchy, but I think its just a comitee designed spec. With all its complexity, interestingly enough, plain text ASCII would both be smaller in size and easier to parse! So I wrote this command line driven program to parse through the little file system in the Exif headers and extract the stuff I really care about: What the digital camera settings really were.
The other thing I realized is that the files coming out of most digital cameras contain an integral thumbnail as part of the Exif header. This thumbnail is used for flipping through really tiny images on the LCD, although most cameras, when viewing just one image on the LCD don’t use it (too little detail). This thumbnail takes up typically around 10k of data in the header. Once the picture is off the camera, even the software that comes with the camera doesn’t use the thumbnail in the file, so its really just wasted space. So I added an option (-dt option) that reads the whole Jpeg image, figures out where the useful part of the Exif header ends, discards the thumbnail, and saves it back to disk. where the thumbnail is, and writes everything (including the rest of the Exif header) back Result: 10k space savings, with all the important information, including the digital camera information in the exif header intact. No loss of image quality, and very fast. So far all software I tried, including the software that comes with the digital cameras, has worked fine, and is still able to parse the Exif header.
For novice unix and OS-X users: Don’t forget to set the executable bit after downloading the pre-built executables. Type “chmod +x jhead” at a shell window after downloading it to do this. You don’t have to do this if you use one of the RPM packages.
New Features
Version 2.88: Release notes were unavailable when this listing was updated.
Installing Apps on MAC
Most Mac OS applications downloaded from outside the App Store come inside a DMG file. Like if you wanna download Jhead for mac from this page, you’ll directly get the .dmg installation file into your MAC.
- First, download the Jhead .dmg installation file from the official link on above
- Double-click the DMG file to open it, and you’ll see a Finder window.
- Often these will include the application itself, some form of arrow, and a shortcut to the Applications folder.
- Simply drag the application’s icon to your Applications folder
- And you’re done: the Jhead is now installed.
- When you’re done installing: just click the “Eject” arrow.
- Then you can feel free to delete the original DMG file: you don’t need it anymore.
- Now, enjoy Jhead for MAC !
You don’t have to put your programs in the Applications folder, though: they’ll run from anywhere. Some people create a “Games” directory, to keep games separate from other applications. But Applications is the most convenient place to put things, so we suggest you just put everything there.
DMG files are mounted by your system, like a sort of virtual hard drive. When you’re done installing the application, it’s a good idea to unmount the DMG in Finder.
Uninstall Apps on MAC
Removing Jhead apps is more than just moving them to the Trash — it’s completely uninstalling them. To completely uninstall a program on MacBook/iMac, you have to choose one of the options on below.
Method 1: Remove apps using Launchpad
Another manual way to delete Jhead apps from your Mac is using the Launchpad. Here’s how it works:
- Click Launchpad icon in your Mac’s Dock.
- Find the Jhead that you want to delete.
- Click and hold the Jhead icon’s until it starts shaking.
- Click X in the top-left corner of the app icon.
- Click Delete.
Method 2: Delete MAC apps with CleanMyMac X
Now it’s time for the safe and quick app uninstalling option. There’s a safest way to uninstall Jhead on Mac without searching all over your Mac, and that’s by using CleanMyMac X.
- Launch CleanMyMac X and click on Uninstaller in the left menu.
- Select the , you can either uninstall it or, if it’s not acting as it should, you can perform an Application Reset.
- Click on Uninstall or choose Application Reset at the top.
- Now that the application cleanup is complete, you can view a log of the removed items, or go back to your app list to uninstall more.
- And you’re done to remove Jhead from your MAC!
Jhead Alternative App for MAC
Here we go some list of an alternative/related app that you must try to install into your lovely MAC OSX
Disclaimer
This Jhead .dmg installation file is completely not hosted in our Hosting. Whenever you click the “Download” link on this web page, files will downloading directly from the owner sources Official Website. Jhead is definitely an app for MAC that created by Inc. We are not straight affiliated with them. All trademarks, registered trademarks, product names and company names or logos that talked about in here would be the property of their respective owners. We are DMCA-compliant and gladly to cooperation with you.