Be careful when using Lightroom to remove mist in time-lapse photography.

A version of Lightroom CC20 15 adds the function of "defogging", which is a sharp weapon for landscape color matching.

Different from the previous local parameters based on the image, such as sharpening and sharpness, deblurring seems to be based on the global calculation of the image, and it is suspected that some numerical addition methods are used when approaching the output results, which leads to a higher impact on the dark parts of the image than on the highlight areas. The result is that the change of a picture's details will significantly affect the brightness and tone of the whole picture, especially the night photos-the more light changes, the more dark parts are easily affected.

There is not much problem with the processing of a single photo. Anyway, the eyes will receive the goods, and the places that are more or less will be adjusted. When it is used in time-lapse photography, there is a big problem, the picture consistency is too poor, and there will be obvious flicker when it is played.

When I first came into contact with this function, I thought it was just a "batch" parameter, which packaged the parameters such as sharpness, sharpening, black bit, white bit and contrast. Now it turns out that it is not, because no matter how the above parameters are combined, this problem will occur.