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bug #6976

improve preferred media calculation algorithm in dataportal

Added by Andreas Kohlbecker over 1 year ago. Updated 27 days ago.

Status:
New
Priority:
New
Category:
cdm-dataportal
Target version:
Start date:
09/22/2017
Due date:
% Done:

0%

Severity:
normal
Found in Version:

Description

as stated in #6969#node_7 the algorithm to calculate the preferred media representation should prefer bigger image over smaller once. Up scaling smaller images always cause a clearly visible loss in quality.

The algorithm currently calculates the difference of the products of width and height of the desired image dimensions with the actual dimensions.
Negative differences could be multiplied with a factor (fixed, calculated from the preferred extend?) to clearly prefer bigger images over smaller ones.

This improved algorithm should implemented for the cdmlib in the same way where a similar method exists.


Related issues

Copied from Edit - bug #6975: improve preferred media calculation algorithm in cdmlib New 09/22/2017

History

#1 Updated by Andreas Kohlbecker over 1 year ago

  • Copied from bug #6975: improve preferred media calculation algorithm in cdmlib added

#2 Updated by Andreas Müller over 1 year ago

  • Assignee changed from Andreas Müller to Andreas Kohlbecker

to me this looks like a duplicate for #6976

#3 Updated by Andreas Müller over 1 year ago

Andreas Müller wrote:

to me this looks like a duplicate for #6976

... ähh, for #6975

#4 Updated by Andreas Kohlbecker over 1 year ago

  • Subject changed from improve preferred media calculation algorithm to improve preferred media calculation algorithm in dataportal

#5 Updated by Andreas Kohlbecker over 1 year ago

  • Description updated (diff)

#6 Updated by Andreas Kohlbecker over 1 year ago

Andreas Müller wrote:

Andreas Müller wrote:

to me this looks like a duplicate for #6976

... ähh, for #6975

No there is one ticket for the dataportal the other for the cdmlib

#7 Updated by Andreas Müller over 1 year ago

  • Target version changed from Release 4.11 to Release 4.12

#8 Updated by Andreas Müller over 1 year ago

  • Target version changed from Release 4.12 to Release 4.13

#9 Updated by Andreas Müller about 1 year ago

  • Target version changed from Release 4.13 to Release 4.14

#10 Updated by Andreas Müller about 1 year ago

  • Target version changed from Release 4.14 to Release 5.0

#11 Updated by Andreas Kohlbecker 10 months ago

  • Target version changed from Release 5.0 to Release 5.1

#12 Updated by Andreas Müller 9 months ago

  • Target version changed from Release 5.1 to Release 5.2

#13 Updated by Andreas Kohlbecker 7 months ago

  • Target version changed from Release 5.2 to Release 5.3

#14 Updated by Andreas Kohlbecker 7 months ago

  • Target version changed from Release 5.3 to Release 5.4

#15 Updated by Andreas Kohlbecker 5 months ago

  • Target version changed from Release 5.4 to Release 5.5

#16 Updated by Andreas Kohlbecker about 2 months ago

  • Target version changed from Release 5.5 to Release 5.6

#17 Updated by Andreas Kohlbecker 27 days ago

  • Category changed from cdmlib to cdm-dataportal

#18 Updated by Andreas Kohlbecker 27 days ago

  • Target version changed from Release 5.6 to Unassigned CDM tickets

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