![]() So if you have lens distortion, chromatic aberration, fringing, flare, vignetting, etc., you want to address that before you move to HDR processing. That recommendation is based on the pre-processing to remove any/all artifacts from your individual images-because those artifacts will compound as you're pushing saturation, contrast, etc., in the HDR process. Photomatix recommends processing RAW to TIFF before loading images (as a first step, before aligning, deghosting, etc.). If you think pre-processing some images will yield better results, do it - but not because you think you lost the opportunity of "RAW processing" later. IMHO, unless you have a good reason to do otherwise, processing should be applied to the merged image. sharpening, which changes pixels along the edges) because they could be applied in different ways in the different images, and may result in artifacts later. Returning to your question, processing RAW images before merging may change the merge result - the algorithms will work on different data - I'd be very careful also about those who alter some pixels only (i.e. The advantage of RAW is just you have the original camera data, so any improvement to the "load" algorithms (demosacing, camera profiles, etc.) can be re-applied to the sensor original data, something you can't do if those are no longer available. ![]() Thereby, if after the merge the image is still in a "large" enough format, it can be edited as if it was a RAW - how much depends on the merging algorithm and the resulting image. Manipulating a RAW file or a 16 bit ProPhoto RGB TIFF file is quite the same, especially since they will transformed into the same in-memory format. When you open it in Lightroom, IIRC the in-memory format is very similar to that used internally by DNG, in its variation of ProPhoto RGB color space.Īny image stored with enough bit-depth and large enough color space can be edited with ample space before too many data are lost, clipped, etc. In memory, the image will be some sort of 16-bit RGB image, hopefully in some large enough color space. "RAW" means you have the data as read from the sensor, but most image processing applications need to transform them into a common format they can manipulate. For the Adobe Lightroom users there is a special plug-in that allows direct export of the photos from Lightroom to easyHDR for processing and automatic import of the result back to the Lightroom's catalog.When you load an image, it won't be in "RAW" anymore - it will demosaiced, camera profile applied, etc. ![]() Just create a task list, choose settings and wait for the results. If you have hundreds of photos to process, you'll also find batch processing very useful. EasyHDR guides you through the process of HDR image generation and tone mapping, and the available options like editing history (undo/redo) and before/after compare ensure the work with it is fun. The mask painting gradient tool makes it very simple. While tone mapping, you can make use of the layers to apply different settings to various parts of the image, which gives great flexibility. Any moving objects (people, cars), that typically spoil HDR photos, can be eliminated, or repaired with a semi-automatic ghost removal tool. If the photos are taken hand-held, the automated alignment option is right there to fix for shift, rotation and perspective misalignment. It can also do lens distortion and chromatic aberration correction. EasyHDR can process TIFFs, JPEGs and almost all RAW image formats thanks to a built-in RAW converter. The HDR image (also called a HDR radiance map) has to be tone mapped, so it can be displayed on a computer screen or printed. You will get neat results even if the photos are taken in very difficult lighting conditions.Ī HDR image is produced from a sequence of photos taken with a camera at different exposure settings (in most cases in auto bracketing mode, or AEB), where the exposure time, ISO setting and the aperture vary. EasyHDR is an image processing software that produces and tone maps High Dynamic Range images. Say goodbye to unwanted over- and underexposures. With easyHDR, get your digital photos closer to what you've seen with your own eyes.
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