Hi, you should read the documentation for this tool, as at least four
points are needed for a projective transformation.
https://docs.qgis.org/3.16/en/docs/user_manual/working_with_raster/georeferencer.html
This is probably the reason for distortion, but if the original is
oblique, as implied by the use of the projective transformation, it can
be hard to mark points accurately.
Output quality depends on the resampling method chosen. It is also of
course affected by the original quality.
On 31/01/22 06:35, Akanksha Chugh wrote:
1.I clicked on Raster>Georeferencer
2. Open raster>Add points (X and Y)
3. Open Transformation settings
4. Define transformation type as projective, resampling method as
nearest neighbour, target SRS as EPSG:4326- WGS 84, Compression as
none and then ok.
5. Start georeferencing.
On Sun, Jan 30, 2022, 10:21 PM Patrick Dunford
<enzedrailm...@gmail.com> wrote:
Ok. Can you give us a bit of detail of what you're trying to do.
List the steps that you undertook to get this result.
There are a lot of possible factors that can cause blurring, which
includes the resolution of the source raster, and the
transformation method employed.
Assuming you're using aerial photography, there are technical
factors that can cause visual distortion of distances.
On 31/01/22 02:10, Akanksha Chugh wrote:
Raster>Georeferencer
On Sun, Jan 30, 2022, 6:38 PM Patrick Dunford
<enzedrailm...@gmail.com> wrote:
Wjat is the name of the tool or plugin you are using.
On 31/01/22 01:25, Akanksha Chugh wrote:
> There appears black area around the image and also it is
stretched out
> and blurred.
>
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