DSP Tools

[shamimsf]

Hi

After going through it, the output image is shown only for few second and gone.

if i want to keet it displayed on screen , what can be done

regards

shamim

[tala]

HI

I wanna to build simple  image processing application that is (Brighyness )

 picture  below shows the architecture  but the output is just white line (I attache  output image below)

would you please to tell me what is the errors .

Thank you in advance

[vlavruhin]

Hi.

Your block diagram looks ok. The issue seems to be connected with the parameters of blocks. Could you attach your model file? Or at least describe settings of all blocks?

Also you may find similar thread helpful:

http://forums.xilinx.com/t5/DSP-Tools/SYSGEN-How-to-deliver-image-inside-quot-Gateway-In-quot/td-p/1...

[tala]

Hi Vlavruhin
thank you very much for reply me
Im so sorry I can't attach my model file now because i store it in PC at my office (my work)
the size of image 300*300 .

gateway in setting is Output Type: Unsigned

Number of bits: 8 or 16 I don't remember

Binary point:0 these setting was the in all block which include this parameter.
please help me Vitaly
thank you in advance

[vlavruhin]

Hi.

---

the size of image 300*300 .
gateway in setting is Output Type: Unsigned
Number of bits: 8 or 16 I don't remember
Binary point:0 these setting was the in all block which include this parameter.

---

Ok, but what are other parameters?

First of all, try to get image at output without brightness processing part, i.e. connect Gateway In to Gateway Out directly.

[tala]

Hi Vitaly.

i hope you can help me 

This model attached below 

[ra7]

I gave your model a quick look over.

I don't have XSG on this machine, but I noticed your reconstruction of the image stream is wrong; it's set for a single 300 pixel row, hence the single pixel row on the output scope.

Buffer: change 'Output buffer size' to 300x300.

Convert 1-D to 2-D: change output columns to 300.

Should work after that.

[tala]

Hi ra7

thank you for your sugestion .

But the output is still black window

help me please 

thank you in advance

[vlavruhin]

Hi.

Block To Video Display isn't supported in my system. But let me give you several recommendations that will allow you to get a working model:

1. Replace To Video Display block with Matrix Viewer block. Set its properties: colormap matrix = gray(256), minimum input value = 0, maximum input value= 255.

2. Set bitwidth of Gateway In block equal to 8 (since image pixels are represented by 8-bits numbers).

3. Set Buffer Overlap parameter of Buffer block equal to 0 (there is no need for overlap).

Now you should be able to see an image at the output.