For scaling and digital processing in the Dreame S100, the technology used is proudly called Dreamind™ Pro AI by the manufacturer. However, it must be clearly stated that this is not a proprietary processor but rather a marketing term for a chip from MediaTek – specifically, the model MT5889. Unfortunately, we are talking about a rather outdated unit from a time when MediaTek lagged significantly behind the competition in terms of performance. This, unfortunately, has a direct impact on the image, as this chip also handles that. The upscaling in the S100 is fairly average, and the processor has a tendency to artificially over-sharpen edges (fortunately, this can be somewhat tempered with the sharpness slider in the menu). In the options, we also find a feature called "Contour Smoothing," which theoretically is supposed to improve tonal transitions. In practice, it contributes almost no improvement – setting it to any level rarely eliminates visible colour banding, but it can unnecessarily blur elements of the image that should remain sharp.
Another issue is the phenomenon of overscan (cropping the edges of the frame), which is practically visible all the time. Although there is the possibility to set the screen to display the full frame in low-resolution materials, it requires activating the aforementioned Filmmaker mode. And as you may know, this mode completely blocks any changes to other sliders in the picture menu. In our test tables, we noted that the television offers an option to disable overscan, as such a function technically exists in the system – however, in everyday use, while maintaining reasonable picture settings, you will not be able to take advantage of it.
Bravia 3 II is Sony's first TV to use the new MediaTek Pentonic 800 chip, and you can see a few changes in the image processing. Starting with the basics: the upscaling itself is decent. The TV can sensibly upscale lower-resolution material and doesn't have a strong tendency to over‑emphasise jagged edges or other source imperfections. With regular broadcast TV or lower-quality streaming material the picture therefore remains quite attractive.
We have more reservations about the digital image processing. In this model Sony has replaced the well-known "Smooth Gradation" function with a new setting called "Digital Noise Reduction". Its job is basically the same: to smooth out ugly tonal transitions and artifacts caused by heavy compression. Unfortunately, this function performs noticeably worse than before. At the "Large" setting (the only one that had any visible effect) the TV can smooth away too many image elements at once, which causes film grain to disappear and object textures or even skin to start looking unnatural. Worse still, the effect is not particularly stable. When there's more motion in a scene, the function's effect noticeably weakens and at times it looks as if the TV stops intervening in the image altogether. So for everyday viewing we wouldn't recommend using it at a high level. It can help on static shots, but the trade-off is often too much loss of detail.