#Chrom portrait vs landscape tv#

#Chrom portrait vs landscape tv#

Your TV screen is an example of landscape mode. This view is landscape orientation or horizontal orientation. The photo is wider than it is tall, to capture the vastness of a natural setting. Landscape images align with the horizon line. The difference between landscape and portrait orientation. Discover how, given the options of landscape orientation or vertical format, you can select the right approach for the best shot. Most cameras - whether they’re smartphones or DSLR cameras - only capture rectangular pictures, so you only have two options. But while a horizontal image for landscape photography or a vertical subject in an upright portrait shot might seem natural, image orientation isn’t always intuitive. offsets)Ģ70 degree (90 degree CW) scan in x dir (works with pos.The orientation of any image can transform the emotions of a photo, from playful or intimate to dramatic or detached. Or do I miss something?ĩ0 degree CCW scan in y dir (works with pos. But it is not working with 180 degree rotation.

This method is working with 90 degrees clockwise (scanning in x direction), and in 90 degrees counter clockwise (scanning in y direction).

Unfortunately I have an 800 x 480 display for the OpenH7xx board which has no ‘smart’ controller, or at least the display controller can’t be accessed from outside.

Didn’t know that there are ‘smart’ display controllers for ‘dump’ displays where you can flip the x and y directions.

Or if you need dynamic rotation as you have it with smart phones etc… But if hardware is against you, means the connector is only mountable the opposite position, it will not work.

If you can flip the display physically, and you only need it mounted in that way, it will work with positive offsets only.

you read AEIMQ from source, and write to the last row in destination. go “vertically” in the source) and increment by 1 in destination (go “horizontally” in destination). But you can do it the other way round - increment the source by the number of pixels in source row (i.e. You assumed that source frame increments by 1 pixel while the destination increments by the number of pixels in destination row. Again, speculation, I’m not going to try.īut the third option is probably the simplest. The display in question here, RK043FN48H, is controlled by OTA5180A, - see register R0. Even the “naked” displays sometimes have controllers which have some means of tweaking them.

Turn the display upside down, and it’s suddenly CW what you need… The easiest solution is, not to use CCW rotation. When you want to do a counter clockwise 90 degree rotation.

My assumtion is, if they (STM) would have spend a sign bit for the DMA2D offset registers (and of course a signed adding), at least a rotation of a single line would easily be possible. There is none.Īlso you can’t use overflow method, as the offset registers are 16-bit only. I did not find any information within the DMA2D whether the offsets can be negative. Whereas for the destination the addresses are running back (negative direction). You see, within the source frame, the memory addresses are running in positive direction. source frame: this it to be rotated counter clockwise. Although not exactly what would one hope for, the DMA2D probably could be coaxed into rotating one line.